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There Was Once An Avenger From Krypton is a Massive Multiplayer Crossover Fusion Fic series written by Darthkvzn and set in the backdrop of an Alternate Universe version of the Marvel Cinematic Universe. The series can be found on the author's profile on FanFiction.Net or on Archive of Our Own. The anthology story From His Vantage Upon the Moon, and informational collection Sapient Species Codex, Milky Way Edition, are found exclusively on the latter. A work-in progress timeline can be found here.

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The stories set in the series (in chronological order) are as follows:

  1. She Stole My Heart (and most of my valuables) (FF.Net version here) (Gravity Falls and The Owl House) (Completed as of April 15, 2022)
  2. The Girl Who Could Knock Out the Hulk (FF.Net version here) (Supergirl (2015))
  3. Changing of the Guard (FF.Net version here) (Ben 10, Tales of Arcadia, and Bumblebee) (Completed as of September 3, 2021)
  4. Just Another Day at the Office (FF.Net version here) (Mass Effect, Ben 10 and Dragon Ball)
  5. The Royal We (FF.Net version here) (Ben 10 and Tales of Arcadia)
  6. To Rule Alone, to Build Together (FF.Net version here) (Miraculous Ladybug)
  7. A Cold Day in Erebus (FF.Net version here) (Percy Jackson and the Olympians and Harry Potter) (Completed as of September 7, 2020)
  8. Thanatos Scowled (FF.Net version here) (Percy Jackson and the Olympians and Danny Phantom) (Completed as of September 28, 2021)
  9. Refusal of the Call (FF.Net version here) (Percy Jackson and the Olympians, Danny Phantom, and Harry Potter) (Completed as of October 24, 2022)
  10. That Which Drives Nerds to Change the World (FF.Net version here) (Big Hero 6)
  11. Close Encounters of the Gem Kind (FF.Net version here) (Voltron: Legendary Defender, Steven Universe and She-Ra and the Princesses of Power) (Completed as of April 16, 2021)
  12. Eternity in Promise (FF.Net version here) (Voltron: Legendary Defender and She-Ra and the Princesses of Power)
  13. You and Me, and the Woman We Could Be (FF.Net version here) (Dragon Ball Super) (Completed as of October 5, 2020)
  14. Like a Puzzle Piece (FF.Net link here) (Gravity Falls and Infinity Train) (Completed as of January 7, 2020)
  15. From His Vantage Upon the Moon (Multiple; nonchronological)
  16. Sapient Species Codex, Milky Way Edition (Multiple; nonchronological)
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The series provides examples of:

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    A-M 
  • Absence of Evidence:
    • One of the major plot points of the Labyrinth arc of The Girl Who Could Knock Out The Hulk is Kara being puzzled by how not only does S.W.O.R.D. apparently have no knowledge of Krypton or the Kryptonian Empire, but that while there is an asteroid belt in Krypton's former orbit around Rao/Gliese 3707 and all the other planets Kara remembers are there, the actual mass of the asteroids is nowhere even close to the mass of even one of Krypton's moons, let alone the other moons, Krypton itself, or its sister planet Daxam, not to mention that Kara's best estimates of how long she spent in the Phantom Zone don't give the belt itself enough time to form. Lena's best guess is that maybe time went wonky and Kara was in the Zone longer than she thought, and the explosion was so violent that the remaining mass fell further out of orbit than Kara thought it would, but Kara's still not convinced. Doctor Doom eventually reveals that this is because Kara's actually from a different universe than the one she's currently in, and while the native versions of some individuals, like Lena, came into being as a result of the changes Doom and Reed got the Celestials to trigger to make her fit, the equivalent of the Kryptonian star system didn't change properly.
    • When Nico hears of Dark Dan's Bad Future, and how widespread the devastation apparently was, he wonders why there was apparently no actions taken against him by the Olympians or one of the other major players around Earth like Supergirl or the other Avengers. Danny speculates that either there was some other cataclysm that took out the others, or that he's potentially more powerful than even he realizes.
    • In Eternity in Promise, Adora muses that, logically, there should have been some First Ones that didn't manage to get off of Etheria before Mara sent it to Despondos, from Mara's own rebel forces to the soldiers and guards loyal to the First One leaders to the technicians keeping everything running. Yet there's been no sign of them anywhere on the planet. Not to mention how that, despite the fact that her existence would indicate that there's at least two other First Ones (her parents) out there, she, Entrapta, and Catra are unable to find any sign of them, or even any of their remains at the remains of the sites Horde Prime attacked, despite the sites having plenty of deactived Horde robots and the remains of clones.
  • Achilles' Heel: Powerful electric currents are one of Supergirl's, as while they can't kill her, they can certainly hurt and incapacitate her, as seen when Whiplash 2.0 uses her whips to electrocute the Kryptonian. And of course, Kryptonite is another after it's introduced by Doctor Doom in his fight with the Avengers. She's also just as vulnerable to magic as a normal human.
  • Actor Allusion:
    • Dipper and Mabel note that King sounds like Bill Cipher. Both characters were voiced by Alex Hirsch.
    • Jane Shepard's alias is Rojo, a recurring Ben 10 antagonist who was also voiced by Jennifer Hale.
  • Adaptational Angst Upgrade:
    • Because it's implied that Kal-El didn't make it, Supergirl has more issues due to truly believing that she's the Last of Her Kind. Though this ends up subverted, as she later learns that her cousin isn't dead and she was actually sent to another universe.
    • The Fantastic 4 are outcasts in the scientific community rather than respected and were forced into serving as criminals by Centipede.
    • Chloe suffers from PTSD due to her near death experience as well as repressing her sexuality.
    • Vilgax's planet was decimated by Thanos, and he is determined to seek revenge on the Mad Titan for it.
    • At first, this trope seems inverted with Kevin. He didn't grow up an orphan throughout his childhood and was raised by Max Tennyson. Until he discovered that Max was lying about what happened to his parents, who were killed trying to protect him from people interested in exploiting his powers.
  • Actually a Doombot: The Trope Namer is the Big Bad of The Girl Who Could Knock Out the Hulk, so of course this comes up, with Doom using one as a decoy during the Labyrinth arc, which makes Kara wonder if she's ever been in the same room as him (Word of God, though, confirms their first encounter was in-person on Doom's part).
  • Adaptational Attractiveness: Victor von Doom never suffered from the facial scarring he received in his backstory and is shown to be quite handsome.
  • Adaptational Badass:
    • Hawk Moth can not only give people powers, but he can also mind control them as well. He also has more direct offensive abilities, like attacking with his butterflies directly and other energy manipulation abilities such as Playing with Fire. The caveat that his power can significantly be affected, positively or negatively, by the ambient emotions around him, like how the bravery and outrage of the Parisian citizens weakens his fire powers enough that an ordinary fire extinguisher can put it out. It's also hinted that he has other dark magic which he uses to bend Nooroo to his will, and a later chapter shows that he's more proactive in keeping his Akumas on-target in this universe.
    • Centipede in canon was just a project developed by HYDRA. In this universe, they're a Nebulous Evil Organization and are pretty much treated as The Illuminati.
    • Ms. Bustier is more proactive with her students, serves as a mentor figure to Chloe, and was also a Miraculous holder.
    • Chi Chi, rather than be a stay-at-home mother, is an instructor at Kame House.
    • Max Tennyson was the previous wielder of the Omnitrix in this series and was considered unstoppable with it. While certainly a badass in canon, he never wielded the Omnitrix outside a What If? episode. As shown at the end of Changing of the Guard, he still retains some of the watch's transformative properties even after having not been its wielder for decades.
    • Julie gains StarForce training, a bionic arm, and showcases better unarmed combat skills. And that's before she gets Ship.
    • Word of God is that all the Miraculouses have their abilities boosted in this AU. On the flipside, combining their powers is significantly more dangerous to the user here.
    • In the MCU, The Nova Corps were more of a generic galactic army who lacked their comic counterpart's abilities. Here, their Flying Brick Space Police status is reestablished.
    • In the final chapter of She Stole My Heart (and most of my valuables), it's revealed that the Masters of the Mystic Arts gave Dipper a Sling Ring after the events of Weirdmageddon, and he's capable of using it too, implying that he'll be studying more Eldritch Magic.
    • The Mass Effect races all get a significant boost in the Kryptonverse. For example, the Krogan Healing Factor is now so powerful that it’s all but impossible to kill them with conventional weaponry, Quarians have species-wide technokinesis (an innate ability to know how any machinery works), and Turians' natural body armor is strong enough to make them Immune to Bullets (at least of small arms fire).
    • Thanks in part to Hawk Moth being more proactive with keeping them focused, it's made clear that every Akuma will be a serious threat to the heroes in this story, or will at least gain information that another Akuma can use.
  • Adaptational Deviation:
    • The Amazons from the Percy Jackson series are reworked here as a splinter group that broke off from the bulk of their people, who are now living in isolation in Atlantis under Kassandra's rule.
    • Rather than Cybertron being a slumbering Primus' alt-mode, it's the result of his and Unicron's remains merging together after their Mutual Kill.
  • Adaptational Early Appearance: Several characters make appearances well in advance of their canon debuts in the MCU.
    • Daredevil (and later the rest of the Defenders) first appears in The Girl Who Could Knock Out the Hulk not long after the Chitauri invasion.
    • Doctor Strange appears in a later chapter of the same story, contrasting canon where he appeared years after the invasion.
    • Rook Blonko appears in the epilogue of Changing of the Guard, which is roughly around the time Ben first gained the Omnitrix. In the series, he didn't appear until Omniverse, where Ben had been the Omnitrix's wielder for years.
    • Granville didn't appear until the events of Big Hero 6: The Series. Here, she shows up to greet Tony before the fire.
  • Adaptational Heroism:
    • Verdona's reasons for leaving Earth and her family behind are far more noble here, as she joined up with the Nova Crops to face the threat of the Black Order to keep Earth safe.
    • Kevin was never the sociopathic Enfant Terrible he was in Ben 10, having always been friends with Ben and Gwen.
    • Chloe in this verse is actively trying to atone for her bad behavior and doesn't suffer from Aesop Amnesia like she did canonically.
    • Raditz is a bounty hunter and has a stable relationship with his siblings compared to the canon where he was the Cain to Goku's Abel.
    • The Red Ribbon Army are re-imagined as a robotics company and not a terrorist organization.
    • Vilgax wants to defeat Thanos, even if he has to go to terrible lengths to do it, in contrast to the original version, who just conquered for the sake of conquest. Downplayed in that his motives don't make him any less of a merciless bastard.
    • Downplayed with Lila Rossi. As Volpina, she's not an Akuma, but a legit Miraculous Holder, and although she rejects an alliance with Hawk Moth, she expresses a fierce desire to remain totally neutral. This makes her more heroic than canon, where she willfully worked with Hawk Moth and would deliberately get herself Akumatized.
    • N'Jadaka/Erik was taken back to Wakanda by his uncle, and thus thanks to the moderating influence of his cousins is not nearly as much of an extremist as he was in the MCU, though he still strongly believes that Wakanda should do more for African Americans around the world.
    • Team STRQ found a young Cinder in Atlas and took her in, resulting in her being genuinely heroic and never having her Start of Darkness.
  • Adaptational Jerkass: Ben and Gwen's parents were loving and caring in the main series, but in this series, Ben's mother is a self-centered politician with his father enabling her, while Gwen's parents are overly controlling and can't even bother to remember their daughter's age. To really drive home how bad it is, Julie's parents used to be heavily controlling of their daughter. Meeting Gwen's parents gave them perspective on how they treated Julie and led to them becoming better parents because Gwen's folks were leagues worse than they were. It's eventually revealed that they both never wanted kids, and they actually told Gwen this.
  • Adaptational Late Appearance: Ben in canon first gained the Omnitrix and started his adventures at 10 years old. Here, he doesn't gain the Omnitrix nor start encountering any of his foes until he's 15.
  • Adaptational Sexuality:
    • Kara in both the series and the comics was straight and only ever had male love-interests. Here, she's pansexual and used to be in love with Lena Luthor.
    • Winn is stated to be gay in this verse.
    • Lena is a lesbian and is also an Armored Closet Gay.
    • Marinette in the show only ever showed interest in Adrian. Here, she's openly bisexual, though she still primarily crushes on Adrian.
    • Chloe was very much a Clingy Jealous Girl towards Adrian, but here she's an Armored Closet Gay and had a crush on Marinette.
    • Caline Bustier's sexuality is unknown in canon, but she had a previous relationship with a woman here.
    • Mabel was rather boy crazy in the past, but here, she also ends up dating Pacifica and openly flirts with Luz when they first meet.
    • Skye is bisexual here and spends a bit of time admiring Kara's figure.
    • Danny Fenton/Phantom is transgender here, which is why Dani is female, though unlike him she actually identifies as such.
    • Several other characters were detailed in a Pride Month post here (later expanded upon in this post). Among others is Pidge being pansexual and genderfluid while Black Widow is an aromantic bisexual, just to name a few.
    • Harry Potter, due to being a girl raised as a boy to better hide her from Voldemort's remaining followers, has grown to no longer care about gender, being effectively neutral on the concept and telling people to address her as whatever they're comfortable with.
  • Adaptational Species Change:
    • Most of the humans in DBZ are re-contextualized as Xandarians. Yamcha is implied to be partially Loboan, while Launch is a Monoclonal.
    • Android 18 was originally a human before she became an android. Here, she was always an android.
    • In canon, Kevin was originally a Half-Human Hybrid before it's revealed that that was coverup and Kevin was just a mutated human. Here Kevin's mother was a human S.H.I.E.L.D. agent and his father an Osmosian that couldn't have kids together naturally, so they took his mother's DNA and altered it so he would have Osmosian-like powers, making him technically a genetically-altered human.
  • Adaptational Superpower Change:
    • Chloe as Queen Bee in canon had somewhat similar abilities to Ladybug and her Limit Break was a "Venom" sting that immobilized its victim. Here, she can fly, secrete a honey-like substance that can either heal people or trap opponents, and her Limit Break is a form of telepathic communication.
    • Word of God is that the other Miraculouses have had their abilities changed around a bit as well, as well as given an Adaptational Badass treatment.
    • Petrosapien crystal in the Kryptonverse, due to Galvan alterations, completely blocks the flow of tachyons, rendering anything fully trapped inside completely unaffected by time for the duration. This is why Myaxx is still alive after being encased inside for 100,000 years, and why it can hold the nearly unstoppable Vilgax.
    • The Fox Miraculous has a rope dart instead of a flute as a weapon, can make body clones that become corporeal when using Mirage, and the Butterfly Miraculous has energy manipulation abilities that can be either boosted or weakened by the emotions in the vicinity.
  • Adaptational Villainy:
    • The Fantastic 4 begin as criminals here, though they are doing so against their will. And then there's the alternate Reed Richards working with Doom in his Cosmic Retcon plan, who has grown utterly amoral about the cost of their plans.
    • Tetrax personally killed Azmuth and Myaxx. In the show, he was a heroic bounty hunter and hardly even qualified as an Anti-Villain at his worst. Although Azmuth admits Tetrax was justified in killing him.
    • According to Steven Universe's Word of God, while the Diamonds did terraform planets, none of them were inhabited nor was there any allusions to there being any intelligent life on other planets other than Earth. Here, due to being set in the MCU where there is an abundance of life in the universe, it means they've wiped out countless races across many worlds and are completely aware of that fact. That said, their preferred targets for colonies are still worlds with no sapient life, and they prefer to simply make arrangements to allow a Gem outpost on the planet and simply wait for the inhabitants to wipe themselves out on their own if there is sapient life there.
    • Hercules in this universe serves Doctor Doom in a quest for revenge against the Greek gods, and is one of the antagonists of the post-Arcadia arc of The Girl Who Could Knock Out the Hulk.
  • Adaptational Wimp: The Saiyans and Z Fighters, while powerful in their own right, are much weaker in that none of them are planet-busters nor do they have the potential to become as such.
  • Adaptation Distillation: For Ben 10. The premise of Changing of the Guard is based off Ben 10: Alien Force with Ben stepping up to the plate in Max's absence alongside Gwen and Kevin, but pulls elements from Ben 10, with Ben first getting the Omnitrix, Vilgax as the overarching threat, and a number of the OS aliens.
  • Adaptation Name Change: Stuart only ever went by Stuart in 3Below and it was implied to be his actual name. Here, it's just an alias he uses on Earth. His real name is Tiu'ars.
  • Adaptation Origin Connection:
    • The process of creating Gems uses Quintessence, which is itself later established to be the blood of Celestials.
    • The Trolls of Trollhunters originally came from Svartalfheim, home realm of the Dark Elves, who enslaved them. This led to the trolls aiding the Asgardians when they fought the Dark Elves during the Convergence, for which Malekith supposedly wiped them out.
    • Akiridion-V is a member world of the Nova Empire.
    • Kassandra is one of Ares' demigod children, who ascended to full godhood after completing her quest.
    • Bellroc was the first Sorcerer Supreme, with Skrael and Nari also holding the title at various points.
    • Juleka is from a long line of witches on her mother's side.
    • The First Ones who colonized Etheria were Alteans who used alchemy to permanently lock themselves into a form lacking their shapeshifting, ears, and facial markings in order to hide themselves from the Galra, said modifications even passing onto their children.
    • SFIT was heavily invested in by Stark Industries. Also, Hiro and Tadashi's parents worked for the LIFE Foundation, and Granville and Callahagn taught Tony when he was in school.
    • The humans on Etheria and other worlds in the Milky Way are the descendants of escapees from Blue Diamond's Zoo and the Xandarians who rescued them.
    • The Mass Effect races are part of the Kree or Nova empires after Doom brings them in.
    • Monica has her powers by the time of The Royal We despite the Hex not existing yet, if at all. Word of God is that this is the result of being exposed to Carol's Tesseract-derived powers over her childhood, which altered her DNA.
  • Adaptation Relationship Overhaul:
    • Ben and Gwen had mostly stable relationships with their parents in the show. In this continuity, they're on far more worse terms with their families and are much closer to their grandfather.
    • Kevin was practically adopted by Max and is considered to be family by Gwen and Ben.
    • Ben and Julie did date in canon, but here they apparently started crushing on each other in third grade where as they originally first met in their teens.
    • While in canon Marinette and Adrian are still in Will They or Won't They? territory, here they hook up at his birthday party. A conversation between Ladybug and Queen Bee also indicates that they learned of each other's secret identities prior to them getting together.
    • In the MCU, Tony was practically a father figure for Peter. Here, while Tony does help him and provide his new suit, they're mostly strangers to each other.
    • In the comics and most adaptations, Doctor Doom is the arch-nemesis of the Fantastic Four, especially Reed Richards. Here, he's more akin to their employer/handler and lacks the antagonism towards them he canonically has. Of course, with the revelation that Doctor Doom actually comes from a different universe, it's implied that he may have had the antagonistic relationship with the Fantastic Four from his reality and simply lacks that hatred for the variants in his current reality.
    • Thanks in part to raising Cinder together; Team STRQ is still in touch with each other. They're still somewhat dysfunctional, though.
  • Adapted Out:
    • Master Fu has no role in giving the Miraculous to their chosen wielders here. Lampshaded when Ms. Bustier speculates that the Guardians are all dead, which would explain his absence. He eventually shows up in Chapter 23, revealed to be the Mysterious Watcher stalking Chloe, and confirms that he's the last remaining Guardian.
    • While Kassandra is introduced and her conflict with the Cult of Kosmos still happened, nothing else from Assassin's Creed is included in this series.
    • While the Klyntar exist in this universe, their creator, Knull, does not, as the author finds the idea of a Symbiote God an unnecessary concept.
    • Prince Ali is cut from the Miraculous Ladybug storyline due to the author feeling that he was a flat character that didn't contribute much to the canon series, with his precipitating role in "Princess Fragrance" instead being given to Shuri, who has a larger part to play in the overall setting.
  • Age Lift: Part of the condensed timeline means that certain characters have their ages altered.
    • Jameson is shown to be much older when he debuted in the MCU. Here, he's the same age as he was in the original trilogy.
    • Peter Parker was less than ten years old when the Battle of New York happened. Here, he's fifteen and has been Spider-Man for the past six months.
    • Word of God states that Tony Stark was born in 1977 rather than 1970, making him seven years younger and around 35 during the Battle of New York.
    • Gohan and Trunk's are roughly similar in age in this series while canonically there was a decade separating the two.
    • Doctor Strange's age is unknown in canon, though he doesn't seem any older than Tony Stark by the time they meet during Infinity War. Here, he was in his early to mid-fifties by the time of the Battle of New York, making him older than he was in the films.
    • According to Dana Terrace's Reddit AMA, Eda was roughly about 45 years old in canon. Here, she's a contemporary of Stan and Ford, making her even older. The same applies to Lilith by extension.
    • In canon, Lila Rossi was the same age as everyone else in Marinette's class. Here, she's a few years older, being 21.
    • In Bumblebee, Charlie Watson is a teenager when she meets Bumblebee in 1987. According to supplemental material for this verse, Charlie was born in 1982 and the movie's plot (or at least a Broad Strokes version) occurs in 2005 when she was 23.
    • In the canon MCU, Fury was born in 1950. In the Kryptonverse he was born in 1930, with his aging rate having been halved due to being exposed to an alien artifact left behind by the Red Skull. Abigail Brand was similarly exposed, also making her older than her MCU counterpart.
  • Alien Blood: In the Saiyan creation myth, it's said that Oozaru's fur is gold because he bathed in the blood of his fellow gods, which was gold in color.
  • All Myths Are True: Norse and Greek mythology for starters, as well as other various legends and folklore throughout history are shown to either be true or inspired by things that have existed.
  • All-Powerful Bystander: According to Doctor Strange, despite the Ancient One's duty to protect the magical world as the Sorceress Supreme and the most powerful magic user alive, she wouldn't get involved unless the situation was truly dire, and sometimes she wouldn't even aid then. Now that he's Sorcerer Supreme, he's making it a point to avert this and be more proactive than she was.
  • All There in the Manual: The Sapient Species Codex is a collection of data entries about the various species inhabiting this verse's version of the Milky Way.
  • Alternate Self:
    • Discussed when Eda admits that she thought that Stan (whom she met on Earth) and Ford (whom she met in another dimension) were doppelgängers of each other rather than twins.
    • Discussed by Strange when he mentions that he saw visions of Doom killing alternate versions of him before revealing that Doom himself is not native to their universe. As it turns out, Doom is native to their universe, its just that he and the original version of Reed Richards have been rebooting and altering the timeline numerous times.
    • Relating to the above point, all the non-Marvel characters in the Kryptonverse are technically this to their canonical versions due to the alterations Doom and Reed have been getting the Celestials to make. Word of God says that, if Ben went to the universe of the canon Ben 10 series, for example, the native versions of him and his family would still be there.
  • Alternate Universe Fic: Well, that much is obvious given that it's a major Massive Multiplayer Crossover, but it extends a bit beyond that.
    • The MCU timeline is more condensed than it was canonically, with aspects like the events of certain films taking place either earlier or later than they originally did. For example, the events of Doctor Strange took place years ahead of time, so Stephen Strange is the new Sorcerer Supreme shortly before the events of The Avengers rather than years after the fact. Presumably, this is intention on Doom and Reed's part, in order to increase the number of heroes available to fight off Thanos.
    • In The Girl Who Could Knock Out the Hulk, it's stated that the events of Fantastic Beasts and Where to Find Them led to the collapse of American magical society, as opposed to how Fantastic Beasts: The Crimes of Grindelwald showed it to still be intact.
    • Ben, his friends, and his family live in Arcadia Oaks rather than in Bellwood.
    • The Guardians are implied to have been wiped out, as the Kwamis have been on their own in choosing hosts for some time before the present.
    • The events of The Owl House were set in the The New '20s canonically. Here, they're set in The New '10s.
    • The events of Bumblebee happened twenty years later than in canon. Furthermore, the rest of the Transformers film series didn't happen in this verse because Shatter and Dropkick's message was intercepted.
    • In canon, T'Chaka abandoned his nephew N'Jadaka/Erik to grow up an orphan in America. Here, T'Chaka took him back to Wakanda and raised him alongside T'Challa and Shuri.
    • While the Big Hero 6 cast exist in this universe, San Francisco is the normal version instead of the San Fransokyo one.
    • Harry Potter is gender-neutral, having been born biologically female but raised as a boy. HP Goblins are also a larger and more intelligent subspecies of the Tales of Arcadia version instead of what was shown in the movies, and Fred and Tonks are alive.
  • Always Close: Lampshaded when T’Challa makes it out of Tony’s mansion seconds before Pepper arrives.
  • Always Someone Better: Victor von Doom is implied to be this to Tony Stark. Tony has no issue stating that Victor is "the most intelligent man in the world", which means that he acknowledges him as his intellectual superior. Considering how egotistical Tony is about his intelligence, that speaks volumes.
  • Ambiguous Situation: The final chapter of She Stole My Heart (and most of my valuables) is deliberately sparse on the details of what happened during the final conflict of season two of The Owl House, like whether or not Belos survived, in order to avoid contradicting the canon events as much as possible.
  • Amicable Exes: Stan Pines and Eda Clawthorne aren't a couple anymore, but they do still get along well and have been trading goods with each other for years. Considering that she calls him "handsome" in a flirty tone when they meet again, she may also still be attracted to him too.
  • A Million is a Statistic: Hawk Moth outright says that he doesn't care if everyone else in the world burns if he gets what he wants when he's called out about his actions.
  • And Then What?: Ben asks this of Vilgax regarding his plan to use the Omnitrix to forcibly unite the galaxy against Thanos, asking what he'll do after winning. Vilgax's ominous response implies galactic conquest for himself.
  • Anthropomorphic Personification: The Miraculous are expanded upon as each embodying something rather than just Tikki and Plagg. The ladybug is creation, the cat is destruction, the butterfly is potential, and the bee is cooperation.
  • Apocalyptic Log: The first entry in Sapient Species Codex, rather than being auto-written by the Altean species-monitoring system, was written by Alteans who survived the Galra purge and were determined to leave behind a record of their species, which they were convinced was too devastated to survive.
  • Appropriated Appellation: Supergirl was a name Jameson called Kara in his newspapers as a condescending insult. After some thought, Kara decides to take it up as her superhero name.
  • Arbitrary Skepticism:
    • It's heavily hinted that an aversion of this is part of why the Mist is becoming less effective after the Chitauri attack on New York; in a world where aliens, Norse gods, a WWII Super Soldier, the Hulk, and all the other crazy stuff out there exists, the idea of mythical monsters is suddenly a lot more plausible, so the Mist is having a harder time exploiting their disbelief.
    • Thor didn't believe that the Omnitrix was anything more than a myth. It's promptly lampshaded that most people on Earth thought that he was a myth until the Battle of New York.
  • Area 51: In this universe, Area 51 is a S.W.O.R.D. facility. According to Word of God, it's where the Garrison that the Paladins were based in before finding the Blue Lion is located.
  • Artistic License – Law: In-Universe, when Chloe finds out that the Mayor passed a new city ordinance that states that if someone becomes Akumatized, or causes another person to become Akumatized, through criminal acts or behaviors they'll get the maximum sentence possible for each offense, she notes that it doesn't sound legal. Lady Noire admits that it's probably not, but given the fear of becoming the one Akuma that allows Hawk Moth to win, no one's really complaining right now.
  • Atlantis: In this universe, Namor sank Atlantis to hide it from Demeter's wrath over losing Persephone. Kassandra would later take it over with her united Amazon tribes, exiling all the men.
  • Back from the Dead:
    • People end up getting killed in Hawk Moth's many Akuma attacks. The only reason death never sticks is because Ladybug's powers reverse all the damage, including the deaths.
    • Although it seems at first glance that Tonks and Fred were simply Spared by the Adaptation, the author's notes at the end of Refusal of the Call reveals that they did die in the Battle of Hogwarts, but someone or something revived them and made everyone forget that they died.
  • Badass Bystander: When a fight between Cat Noir and Queen Bee (suffering from Princess Fragrance's Hate Plague perfume) crashes into the Dupain-Cheng bakery, Tom briefly steps in to help by tossing a bag of flour to Cat Noir, who decks Queen Bee with it.
  • Batman Gambit: The Miraculous team eventually come up with one of these to try and expose Hawk Moth's identity. Chloe intentionally upsets Rose (with her permission, though her memory of it is erased to sell the illusion) so that Hawk Moth will Akumatize her. Juleka will then use the situation to see through his glamor with her True Sight and learn who he is.
  • Be Careful What You Wish For: Lampshaded twice in Chapter 35 of The Girl Who Could Knock Out The Hulk. First we have the Faceless, who wish to have a world void of gods and have joined Doom to that end, which Nico points out would likely be less than habitable, given how the gods maintain the forces and concepts that make up reality. Hercules wants the same, which Hecate points out mean his own demise as well, and wonders if he'd considered that... and then wonders if he has.
  • Berserk Button: The Creatures of Grimm seem to hate off-worlders even more than they hate the natives of Remnant.
  • Bestiality Is Depraved: Dark rituals were used by some factions in Ancient Greece to recreate the circumstances that birthed the Minotaur. Sam and Valerie are disgusted to hear this from Nico.
  • Best of All Possible Worlds: When Nico hears about Clockwork and his Time Master powers, and how he only intervenes in the timeline if something egregious messes with it, he wonders if the ancient ghost would have intervened if Kronos or Gaea had won, and if he has something similar to the limits the Olympians have on interfering with humanity, meaning that he would be unable to interfere with things like the slave trade, Holocaust, or the bombings of Hiroshima and Nagasaki. Then he wonders if Clockwork did intervene then, and this is merely the best that humanity's managed so far.
  • Big Bad:
    • The Girl Who Could Knock Out the Hulk: Doctor Doom, who is using Project Centipede's influence and resources to manipulate the world into being better prepared for a future threat.
    • Changing of the Guard: Vilgax is the ultimate cause of all threats in this story, as he tries to claim the Omnitrix for himself.
    • To Rule Alone, To Build Together: As per Miraculous Ladybug canon, Hawk Moth is the main antagonist, creating the Akumas to attack Paris as a means to claim the Ladybug and Cat Miraculouses.
  • Big Damn Heroes: Just when the Avengers team that fought their way into OsCorp are about to be overwhelmed by Centipede reinforcements, The Cavalry arrives in the form of Doctor Strange coming in via portal along with the Fantastic Four (minus Reed Richards), Bruce Banner, the Defenders, and a large number of SHIELD agents led by Alex.
  • Boring, but Practical: Strange has to use a spell that would have had serious negative effects on him if Thor hadn't intervened in order to temporarily restrain Hercules. What does Thor do when he starts to break free? He simply drops Mjolnir on his chest, knowing that he's not currently "worthy".
  • Brain Bleach: Ben finds himself wishing for some after Krabb mistakes Gwen for his mate, even after Ben clarifies that they're cousins.
  • Broken Masquerade: The Battle of New York clued the Earth as a whole into the fact that aliens exist, and the existence of enhanced individuals. It's downplayed, as their existence was somewhat already known in examples like Captain America beforehand as well as the "mutant boom" that occurred in the 60s and 70s, but it's noted a few times that people are becoming more open to the supernatural existing as a result of the battle. For example, the Mist that hides the Olympians from normal mortals is becoming less effective, which isn't helped by how Percy couldn't help but defend civilians during the battle while the Avengers were busy. Zeus is worried to the point of seriously considering revealing the existence of the Olympians to the public at large so they can at least do it on their own terms. When Hecate makes a personal appearance, she outright admits that even if she worked overtime with the Mist she doubts that she can delay it from failing entirely for more than a few weeks longer than he would have on its own.
  • Canon Welding: A big part of this series is making the various different franchises work as part of a greater whole.
    • Max and the Plumbers were a subset of the Nova Corps.
    • The Earth-born Paladins of Voltron are agents of S.W.O.R.D., of which the Galaxy Garrison is a training facility.
    • Gabriel got the cryogenic technology he's storing his wife in from HYDRA, who used the same type as the Winter Soldier program.
    • The Kwamis are the divided essence of a Celestial.
    • S.W.O.R.D. also exists in place of Sector 7.
    • The trolls originally come from Svartalfheim, and fled to Earth when Malekith tried to wipe them out for siding with Asgard during the Convergence.
    • Akiridion V is a member world of the Nova Empire. Gaylen, the deity who is part of their mythology, was a Celestial who experimented with their planet until their early leader, Seklos, killed him. And the Akiridions' Life Cores (and by extension their status as Energy Beings) are the result of Seklos reverse-engineering the Gems' Hard Light bodies and gemstone cores to help her people evolve past an organic state in order to fight Gaylen.
    • The Masters of the Mystic Arts visited Gravity Falls after Weirdmageddon.
    • When speaking with Kanjigar, the Ancient One refers to herself as Merlin's successor, suggesting that he was once Sorcerer Supreme.
    • As the Citadel Council doesn't exist in this universe, all its member species are instead either members of the Nova Empire or vassals of the Kree.
    • The humans on Etheria and other worlds in the Milky Way are descendants of human escapees from Blue Diamond's Zoo who were rescued by Xandarians and interbred with them when they realized their compatibility.
    • The base that the Bounty Hunters Guild establishes on Earth's moon is built in the ruins of the Inhumans' abandoned city. S.W.O.R.D., meanwhile, has a base operating out of the Diamonds' Observatory facility.
    • While Omega doesn't exist, Aria is instead operating her criminal empire out of Knowhere, where she's a rival/business partner to Tivan.
    • Primus and Unicron were Celestials, and Energon is Quintessence, which is Celestial blood.
  • Captured Super-Entity:
    • The Omnitrix is powered by a Celestial (basically a Marvel Celestial combined with a Ben 10 Celestialsapien), though if Vilgax can be believed Azmuth somehow managed to convince it to reside within the device voluntarily.
    • This is how Doom and the original Reed have been powering their Cosmic Retcons. They capture a god and drain their power in order to use it to trigger the timeline's reboot.
  • Cast Full of Gay: Several of the major characters are gay or bisexual. Kara being pansexual, Lena and Chloe being lesbians, Winn being gay, Marinette being bisexual, Tony being pansexual and implying that Banner is the only fully straight member of the Avengers, the list goes on. And that's not even counting canon LGBTQ characters like Luz or Nico. While not every character is, enough of them are to qualify.
  • Chekhov's Gunman: Early in Changing of the Guard, it's mentioned that three bounty hunters come to Earth in response to the Omnitrix activating, but only two (Sixsix and Krabb) show up during the story. The epilogue reveals that the third one, whose identity is still unknown at this point, is an informant for Max who's keeping an eye on things for him, with Just Another Day at the Office revealing it to be Shepard.
  • Child Soldiers: Lampshaded by Nico regarding the fact that most of the magical heroes that Strange wants him to lead a team of are rather on the young side, even using the term. Doctor Strange acknowledges the point, saying that many of the heroes of the modern age were forced to take up arms at a young age.
  • The Chooser of the One: Unlike canon, where Master Fu was responsible for choosing who would become a Miraculous holder, here, the Kwamis choose who is worthy of wielding them. Though as Hawk Moth shows, they can apparently still make mistakes or get captured by villains, whichever happened here. The Guardians still existed in the past, but are seemingly not around anymore in the present. The last time that Tikki can confirm that they were active as when her last bearer before Marinette, Jeann d'Arc, died, but that's still a 600 year time gap where they could have died.
  • The Chosen Many: As revealed in Chapter 34 of The Girl Who Could Knock Out the Hulk, Doctor Doom and the original Reed are explicitly trying to create and subtly “guide” as many heroes as possible in order to minimize the damage Thanos can do to Earth.
  • Les Collaborateurs: Unbeknownst to Adrien, his grandfather and great-grandfather worked with HYDRA during World War II to keep their family safe.
  • Comic-Book Movies Don't Use Codenames:
    • In the case of the Fantastic Four, they're never called that or by their comic hero names, though Iron Man does offhandedly call Johnny "human torch". However, it makes sense given the fact that they start off as criminals on a leash and none of them are heroes yet.
    • Technically speaking, Victor von Doom isn't called Doctor Doom until the Avengers christen him by that name after he subjects them all to a Curb-Stomp Battle. Bruce points out that since Victor has multiple Doctorates, the name fits.
  • Composite Character:
    • Spider-Man is mainly rooted in the MCU version of the character, but he has more elements of The Amazing Spider-Man Series such as his relationship with Gwen Stacy, the spider that gave him his powers coming from OsCorp, and his parents having worked for said company.
    • This version of Gwen Stacy is stated to be a mix of her version from The Amazing duology and Spider-Man: Into the Spider-Verse.
    • Ben has the maturity and appearance of his Alien Force incarnation, but the Omnitrix design is that of the original series. The first ten aliens he receives are a mix of his original series aliens (Heatblast, Diamondhead, Rip Jaws, Upgrade, Four Arms, and XLR8), the ones he first had in Alien Force (Goop, Big Chill, and Echo Echo) and the reboot series (Overflow).
    • Julie is a soccer player like Ben was in Alien Force.
    • Lena taking up the Titanium Man armor gives her elements of her brother. The author even states that it'll basically be her version of Lex's Warsuit.
    • The Celestialsapiens from Ben 10 are merged with the Celestials of Marvel, with them being the same species.
    • The Greek Gods are a mix of their Percy Jackson versions as well as their versions from the video game, Hades. Having the history of the former as well as the appearances of the latter. At least when Thor meets with them, Strange, who is with him at the time, notes that they looked more like their Percy Jackson versions at the time, implying that they merely took the forms to be impressive to the Asgardian.
    • Charlie Watson is Mikaela Banes' love interest, giving her a small element of Sam Witwicky from the Transformers Film Series.
    • In-universe in Chapter 33 of The Girl Who Could Knock Out the Hulk, where Kara's Black Mercy illusion combines JARVIS and Kelex into a single AI.
    • An unnamed princess, later confirmed to be Shuri, takes the place of Prince Ali in this universe's version of the events of "Princess Fragrance".
    • Master Fu has been merged with Su-Han, now having the latter's angry perfectionism regarding the use of Miraculous.
  • Conservation of Ninjutsu: When Ben asks why Vilgax doesn't use the Omnitrix to revive his species, he reveals that the dark magic that empowers him is fueled by The Power of Hate from the souls of his slain people wanting revenge, and if even one more member of his species was born it would drastically cut his power. That's why he left Myaxx in stasis when he discovered her, still alive, on the Galvan homeworld.
  • Contrived Coincidence:
    • Tony arrives in Arcadia only minutes after Coulson (whom the Avengers all think is still dead) is whisked off to negotiate with the trolls.
    • Shepard notes how unlikely it was that she and EDI would both be brought into this universe together when they were at separate locations back in their own at the time, taking it as proof that their transportation was by design rather than accident.
  • Cosmic Retcon: It's revealed in Chapter 34 of The Girl Who Could Knock Out the Hulk that Doctor Doom and Reed Richards have been dragging people, species, and objects from other universes into Earth-199999 and then rebooting the timeline to make them retroactively part of it, all for the purpose of making Earth strong enough to fight off Thanos and the Black Order.
  • Crazy-Prepared:
    • The "Trophy Room" vault that Tony has built inside Avengers Tower is lined with lead-infused titanium in order to completely seal it off if necessary, has its own dedicated arc reactor power source, and in case of emergency can detach from the tower and be carried by repulsor anywhere within a five thousand mile radius.
    • S.W.O.R.D. built a Self-Destruct Mechanism into the Excalibur that's designed to go off if the station's Wave-Motion Gun is ever angled to aim at Earth, as a preventive measure against it ever being turned against the planet.
  • Crossover: Obviously the main focus of this series, given that it's a massive fusion story, but the first time this happens between the various stories of the series is Vilgax's invasion of Arcadia Oaks, which is covered in multiple chapters of both Changing of the Guard and The Girl Who Could Knock Out the Hulk. Word of God refers to this event as "Horizon".
  • Curb-Stomp Battle:
    • The Avengers vs. the Centipede mercenaries isn't even a fair fight. With exception to the enhanced ones (Titanium Man and Whiplash 2.0), none of them give the Avengers any trouble, with Hawkeye, Widow, and Captain America easily taking out most of them and Kara dealing with a squad of armed thugs with more effort trying to get them to stop shooting her due to the futility than actually fighting.
    • When Titanium Man ends up hurting Lena while fighting Spider-Man, Kara snaps, goes all out, and rips his armor off with ease.
    • Once Doctor Doom enters the picture in Chapter 23 of The Girl Who Could Knock Out the Hulk, he effortlessly dismantles all the Avengers and Spider-Man. He even does so to Supergirl after bringing in a Kryptonite dagger and stabbing her with it.
    • Reportedly, the Kree Empire has been on a one-sided losing streak against the Diamond Authority and have at best managed to limit their expansion. As Moonstone puts it, it's hard to compete when your enemies don't need to eat, sleep, breathe, or undergo a decade of training just to be effective in battle.
    • Eda vs the Goblin horde is a one-sided affair where the goblins are easily wiped out.
    • Once Bixbite enters the picture, the fight against the Homeworld Gems and the Paladins of Voltron goes from them barely managing to hold their own to a one-sided take down where Bixbite barely even tries.
    • The unseen battle the Avengers, the Fantastic Four (minus Reed), the Defenders, Doctor Strange, and SHIELD fighting the entire Centipede army is stated to be a completely one-sided affair. Word of God even states that the Hulk alone would have tore through them with ease, and that including everyone else was just overkill.invoked
    • Vilgax's ship, the Chimeran Hammer, tears through the Kree fleet blockading Earth without any apparent trouble.
  • Curb Stomp Cushion: While Kara does get horrifically incapacitated after Doctor Doom stabs her with Kryptonite, she does manage to land at least a couple full-power hits on him before that, which did heavily wound him.
  • Darkness Von Gothick Name: Victor von Doom. Kara even lampshades that with a name like that, he might as well change his name to "Evil McBadguy".
  • Deal with the Devil: How Gabriel views his alliance with HYDRA, whom he is morally disgusted by. He actually refers to it as a Faustian bargain.
  • Death by Adaptation:
    • Azmuth was killed by Tetrax long ago before the start of the series, and the entire Galvan and Galvanic Mechamorph race are long since extinct.
    • Ben's Diamondhead transformation is confirmed to be the last Petrosapian in existence, meaning Tetrax is dead in this story as well.
    • Because Lena is an orphan, Lex and the rest of her family are long since dead.
    • Granted, he died in canon, but he came back because it's Dragon Ball and Death Is Cheap, but since that's not exactly the case here, Frieza is reportedly dead for good here since Captain Marvel killed him in the past.
    • The Guardians existed in the past, but it's implied that they were wiped out sometime in the gap between Jeanne d'Arc's death, which is the last time that Tikki was awake and could confirm their existence, given their absence in Paris despite what Hawk Moth is up to.
    • Namor was killed by Kassandra when she and her faction of Amazons took over Atlantis thousands of years ago.
  • Decomposite Character: Ivan Vanko/Whiplash's equipment gets used by a woman reminiscent of the version of Whiplash from The Avengers: Earth's Mightiest Heroes.
  • Defictionalization: An In-Universe example. The Mass Effect games originally existed in the Kryptonverse. However, the Cosmic Retcon caused by Doctor Doom and his Earth's Reed Richards brought their existence into the new universe while simultaneously removing the games' existence.
  • Demoted to Extra: In the original version of The Girl Who Could Knock Out the Hulk, the Harry Potter side of the crossover was given a lot of presence. In the rewritten version (and by extension the rest of the series), it's been toned down to only being at most a background element.
  • Did You Just Punch Out Cthulhu?: In Chapter 35 of The Girl Who Could Knock Out the Hulk, Ellie's Ghostly Wail nearly destroys Hecate's physical form before it runs out of energy, and leaves the goddess damaged enough that Strange can attempt to banish her (only failing due to Doom's intervention).
  • Dimensional Traveler:
    • As revealed in Chapter 34 of The Girl Who Could Knock Out the Hulk, Kara was pulled out of Earth-16 and into the current universe because Doom and Reed couldn't properly retcon her into having always existed.
    • Jane Shepard is aware that she's from a different universe from the one she woke up to find herself in. Again, this is due to Doom and Reed being unable to properly merge her.
  • Disabled in the Adaptation:
    • In this continuity, Kara is legitimately near-sighted due to damage to her corneas from when her heat vision powers first manifested.
    • Julie ends up losing her arm when she and Ben were confronted by Sixsix. She gets it replaced by a Kree-made prosthetic.
    • Bardock was paralyzed from the waist down prior to leaving Planet Vegeta.
  • Discontinuity Nod: The author’s notes at the end of Chapter 34 of The Girl Who Could Knock Out the Hulk reveal that two of the author’s discontinued stories are actually previous “iterations” of the Kryptonverse that Doom and the original Reed tried with their Retconjuration alterations before reaching the one with Kara, and they show her glimpses of them when trying to convince her to join them.
  • Dragged Off to Hell: Nico manages to separate out Technus' soul from the ectoplasm composing his ghostly form and send him to the Underworld.
  • Dude, Where's My Respect?:
    • Nico feels this not himself, but on the behalf of his friends, those who fought and bled defending humanity against the giants and Titans, and hopes that when The Masquerade comes down for good, they'll be respected the same way the Avengers are.
    • Dani looks up to Danny, sure, but she's still a little miffed that Amity Park spends all its time looking up to a hero that's gone while treating its current heroes badly.
  • Earth Is the Center of the Universe: In general, this is averted, as Earth is a backwater planet in a backwater galaxy that has only recently become relevant on the larger scale. However, Doom and Reed reveal that on the Celestials' multiversal level, Earth is vital — it exists in every universe, with humanity always living on it, and if it's destroyed, the universe as a whole suffers. Verdona and Max confirm that this is the case in Just Another Day at the Office, telling Shepard that it'll be easier to pinpoint the universe of her origins on Earth.
  • Easily Thwarted Alien Invasion: Downplayed. Despite what the news claims and the fact that they won at the end of the day, the Avengers note that they just got extremely lucky in stopping the Chitauri and were close to failing.
  • The Empire: There are several examples in the greater cosmos.
    • There's the Galra, obviously, which covers the most territory by far, and is an oppressive regime.
    • The Gem empire, despite covering far less territory overall, has completely conquered their entire home dwarf galaxy and portions of all surrounding galaxies with a thoroughness the Galra can't match, and Moonstone believes that they would have conquered the universe by now if they weren't so methodical about extracting everything useful that they can before moving on.
    • The Kree have an empire as well, though Carol has resulted in it being significantly defanged.
    • The Nova Corps is technically an empire, but they're fairly hands-off as long as a world remains affiliated and doesn't engage in "bullshit like slavery", as Carol puts it. This is part of why, despite the Akiridions being one of the oldest and most loyal members of the empire, Nova Prime has given orders not to interfere with Morando's coup. The fact that they will need Akiridion's military forces against the Black Order is another factor. Technically member worlds do send tribute, but there's a great deal of flexibility in what they can send, some send recruits for the Nova Corps, for instance.
    • Krypton had an interstellar empire back in its heyday, one that was far-reaching enough that Kara is deeply confused that no one else she's met with knowledge of the wider galaxy has never heard of it. This turns out to be one of the hints that Kara isn't in the same universe as she was before.
    • As per Mass Effect canon, the Protheans once had an empire that dominated the Milky Way. Though instead of the Reapers (who don't exist here), they were instead destroyed in a rebellion by a coalition of repressed races, spearheaded by the Kree and Skrulls.
  • Enemy Mine:
    • It's suggested that the Galra and Paladins might have to team up to defeat the Gem threat in the future.
    • According to the Codex, the Prothean's empire was toppled by an alliance of the Kree and Nova.
  • Entertainingly Wrong:
    • Eda assumed that Ford was Stan's Alternate Self instead of the two of them being twins, so she didn't offer him a lift back to Earth.
    • Luz assumed that the Boiling Isles was "nondenominational H-E-Double-Hockey-Sticks", which Ford admits is understandable. He himself mistook it for Bill's original dimension.
  • Even Evil Has Standards:
    • In the timeline that Clockwork helped Danny avert, Vlad helped the Guys in White capture and experiment on Ellie...and they were all horrified to realize too late that being half human meant that she could still feel pain.
    • Gabriel is disgusted by HYDRA, and only works with them out of necessity to try and save his wife.
  • Everyone Has Standards: Tivan and Aria may tolerate working together to run Knowhere, but they don't like each other — Tivan hates Aria's unnecessary violence, while Aria finds Tivan weird and snoopy.
  • Everybody Hates Hades: Averted, but it's brought up that Hades despises the Disney Hercules film for spurring this reputation on him when he did nothing to warrant it.
  • Evil Cannot Comprehend Good: Yellow Diamond can't understand why someone would bother to create Voltron to defend the universe because in her eyes, creating it is a waste of Quintessence that she feels could be used for conquest.
  • Failed a Spot Check: Strange somehow missed that Danny Phantom was living in New York City for the last few years, albeit in human form. Even Fury knew, though it's likely he deliberately kept Strange in the dark about that.
  • Fantastic Racism: The Forever Knights, as per canon, despise aliens and other non-humans, with focus given towards their goal of wiping out the trolls.
  • Fate Worse than Death: In Chapter 13 of Changing of the Guard, it's stated that this is what awaits SixSix if he survives being thrown in the Deep.
  • A Form You Are Comfortable With: Subverted. To Strange's surprise, when he and Thor visit Olympus in From His Vantage Upon the Moon, they find that the Olympians have shifted from their modern appearances as normal-looking (albeit 30-feet tall) people back to the monolithic figures they presented in ancient times. Poseidon at least looks the same save for his clothing, and Hestia didn't change at all.
  • For Want of a Nail:
    • More heroes showing up during the events of the Battle of New York to protect civilians leads to the Avengers expanding their ranks much earlier.
    • Vilgax's invasion of Arcadia makes the Avengers privy to Thanos and the threat he poses to Earth far ahead of schedule.
    • S.W.O.R.D. managed to intercept Dropkick and Shatter's transmissions about Earth, preventing the rest of the Transformers from coming to the planet so far.
    • N'Jadaka/Erik was taken to Wakanda by his uncle, so he’s not nearly as much of an extremist as in canon thanks to growing up with his cousins, while T’Challa is being more proactive in world affairs earlier on.
    • Team STRQ found a young Cinder in Atlas and decided to take her in, which has massive repercussions for the canon RWBY timeline. The changes go so far as Salem deciding to delay enacting in her big plans for a generation.
    • Thanks to Power Girl intercepting the Akiridion ship in mid-air, it doesn't land in the suburbs. Also, because the ship was more damaged in the escape and landing than in canon, they don't even have enough spare power to generate holographic disguises.
    • Tony Stark's presence at the San Fransico Institute of Technology during Hiro's presentation means he is there during the fire, and he is able to prevent Tadashi's death by blasting him out of the fire before the explosion.
  • Fusion Fic: All the stories that encompass the series inhabit the same universe but take place in different locations at different points in time, with references and other aspects that connect them to the greater universe at large.
  • Galactic Conqueror: Multiple characters and factions either are this or wish to be it.
    • Most notable is the Gem Empire, which has 100% control of every solar system in their home dwarf galaxy, as well as presences in multiple other galaxies, namely Andromeda, which their galaxy orbits, and the Milky Way, along with other members of the Local Group. The only reason they haven't conquered the universe yet is that the Diamonds like to take their time extracting all available resources from a system before moving on, and since they're effectively immortal they're not exactly rushing.
  • Gender Flip: Harry Potter is a girl, having been raised as a boy to help better hide her from vengeful Death Eaters.
  • George Lucas Altered Version: The version of The Girl Who Could Knock Out The Hulk released on AO3 in early 2020 is an updated version of the one originally published on FF.Net in late 2017. Word of God also states that the updated version on AO3 is canon to the There Was Once An Avenger From Krypton universe while the original is no longer canon. As of March 21, 2021, the original version was deleted from FF.Net and replaced with the updated AO3 version.
  • Glamour: Like in canon, the Miraculous seem to have a glamour effect to help protect the Secret Identity of the wearer. Of particular note is when Chloe reveals her identity to Marinette; when she points to the jewel of the Bee Miraculous, Marinette's eyes focus and widen, like she's just woken up from slumber. She even lampshades how weird it is that she hadn't noticed it before. It's partially sheer exhaustion from having just woken up from a battle with Hawk Moth where she got stabbed, given that she can tell that something is up, but Chloe doesn't realize that Marinette and Adrien are her fellow heroes even after she finds them sleeping right next to her after said battle with unusual jewelry before Plagg and Pollen all but spell it out for her. Even the Weirdness Censor around Paris is compared to said Glamour applied in a magic bubble around the whole city. It turns out this is a result of Hawk Moth projecting the Miraculous glamour outwards and covering the entire city with it, shielding his actions from the outside world.
  • A Glitch in the Matrix: In Chapter 33 of The Girl Who Could Knock Out the Hulk, Kara's Black Mercy-induced illusion starts to break down, with her noticing gaps in her memories and having moments of disorientation, as a side effect of Doom projecting a portion of his subconscious into hers in order to communicate with her.
  • Gods Need Prayer Badly: It's made clear to Valerie and Ellie by Nico that the Olympians and deities like them need humanity, even if they're not actively worshipped by the latter anymore. This is explicitly not the case with Asgardians, with Thor finding the whole thing weird.
  • Godzilla Threshold:
    • In Chapter 15 of Changing of the Guard, when Ben refuses to run from Vilgax, since that would just cause him to spread chaos and destruction chasing the Omnitrix through the galaxy, and at least in Arcadia they have the home field advantage, the Azmuth A.I. unlocks the Omnitrix's Master Control so he can at least give Ben the best chance he'll get for success.
    • In Chapter 35 of The Girl Who Could Knock Out the Hulk, the heroes are about to be overwhelmed by Doom's supernatural allies, so Ellie allows Thor and Strange to supercharge her enough that she can use her Ghostly Wail against them, despite the fact that doing so could potentially destabilize and melt her. Fortunately, she just loses consciousness right after taking all the villains out of commission.
    • As Strange explains in Refusal of the Call, Voldemort's rising power in the British wizard community was enough of a potential threat to the global magical balance that the Ancient One actually decided to break her normal neutrality and intervene. This was only subverted by Dumbledore talking her out of it, due to already having his own plans in place.
  • Good Is Not Soft: Captain America is a kindhearted man who does good for its own sake, but if you're ever on his bad side...well, Natasha put it best: There's a very good reason that 95% of his exploits against HYDRA in WWII are still classified.
  • Goth: Sam Manson, similar to canon. Nico even muses that she looks like someone who never grew out of their teenage goth phase.
  • Greater-Scope Villain: As per MCU canon, Thanos and his Black Order are the greatest threat looming on the horizon. Even more so here, as he has indirectly caused the actions of at least two other Big Bads — Vilgax's own rampages have been for the sake of getting strong enough to defeat him for revenge, while Doctor Doom's actions are driven by a need to prevent Thanos from devastating Earth with the Snap the way he did in Doom's original timeline.
  • The Greatest Story Never Told: Lampshaded in Thanatos Scowled by Nico, who hopes that once the Mist fades completely his friends who helped save the world from the Giants and Titans in secret will finally be just as respected and beloved as heroes like the various Avengers.
  • Hero Does Public Service: After the Battle of New York, Iron Man and Captain America both provide relief and repair for the city either by helping civilians or cleaning up the tech and debris left behind by the Chitauri.
  • Humans Are Bastards: When recounting the origin of the Minotaur to Sam and Valerie, Nico explains that numerous cults tried to recreate it in order to have living weapons against the gods. He then dryly notes that humans can get pretty creative when it comes to making the evil in their hearts tangible.
  • Humanity Is Infectious: Moonstone notes that actually interacting with organic beings like humans tend to have a "corrupting influence" on Homeworld Gems, and the more they do so, the more likely they'll break away from the system.
  • Hypocrite: Zeus approves of Thor's desire to protect Earth over seeing Jane Foster for the time being. Strange finds the praise rather rich coming from Zeus considering, well, it's Zeus.
  • I Hate Past Me: Poseidon, while altering his outfit to match his ancient appearance, refuses to revert back to the form he took in the Greek era because he loathes the kind of person he used to be back then.
  • Insignificant Little Blue Planet: Earth was this, and in general the Milky Way as a whole is a bit on the backwater side compared to galactic-scale empires like the Galra's or Gemkind's, but things are changing after the Chitauri invasion made the higher powers look in Earth's direction. That said, The Royal We reveals that Earth is known to xeno-biologists as having one of the most wildly diverse biospheres and environments in the known galaxy (to say nothing of how it's apparently ranked up rather high for it's beauty). In addition, the Sol system as a whole is notable for having nine planets when the average solar system in the galaxy has only two or three.
  • In Spite of a Nail:
    • Apparently, whenever a bearer of the Omnitrix, be it Ben or someone else, transforms for the first time (unless one counted the reboot), it's always a Pyronite. Even in universes where the species just plain doesn't exist. Azmuth has no idea why that happens, it just does.
    • Despite the differing circumstances from canon, Cinder still loses an eye and her arm.
    • While the Citadel Council doesn't exist, Tevos is still the Asari representative in the legislative body of a multi-species alliance (in this case, the Nova Senate).
  • Insane Troll Logic: Ben and Vilgax agree that Thanos is operating on this, as his obsessive belief that indiscriminately killing half a planet's population will automatically solve all its problem ignores all the collateral damage and aftereffects.
  • The Juggernaut: Vilgax's ship, the Chimeran Hammer, has no shields (relying on a reinforced hull) and kinetic weapons instead of energy weapons, but still manages to tear through a fleet of Kree ships that are centuries more advanced.
  • Just a Kid:
    • How the Avengers see Spider-Man due to him being fifteen, which results in them having different mind-sets on him. Tony prefers to help him from afar since the idea of having an underage teen be a member of the Avengers doesn't sit well with him (he also notes that it would be controversial with the public) while Steve wants to bring him into the fold and help him with proper training and support since he'd need it more than any of the adult heroes.
    • Coulson similarly expresses dislike of the Avengers recruiting Spider-Man due to his youth, which is the same reason he doesn't want to recruit Ben's group after meeting them.
  • Karma Houdini: Unlike in MCU canon, Justin Hammer wasn't sent to prison, instead only being charged with fraud and reckless endangerment and being sentenced to house arrest.
  • Killed Off for Real: The author has confirmed that Bill Cipher is dead for good and will not be returning from his death in canon.
  • Know When to Fold 'Em: Vilgax's invasion is the last straw for the Kree, who decide to wash their hands of Earth and hand custodianship of the Sol system over to the Nova Empire instead.
  • Kryptonite Factor: In Chapter 23 of The Girl Who Could Knock Out The Hulk, the Trope Namer makes its debut, courtesy of Doctor Doom.
  • Laser-Guided Amnesia:
    • Aside from Odin himself, every Asgardian's knowledge of Hela being his true firstborn child has been wiped.
    • After Max and Kanjigar defeated a Forever Knight patrol looking for Trollmarket, the Ancient One wiped the Knights' memories of the exact location where the fight happened, thus throwing them off the trail.
  • Last of His Kind:
    • Vilgax is the last of the Chimera Sui Generis due to Thanos wiping out his entire species.
    • Master Fu is the last of the Guardians in this universe.
  • Last Villain Stand: During the climax of Changing of the Guard, Vilgax has lost his ship and army, and is being overwhelmed by the Avengers and Alien Force. Despite this, he keeps going until he's sealed in Petrosapien crystal by Diamondhead, even after Power Girl rips his arms off.
  • Leaning on the Fourth Wall: As revealed in Chapter 34 of The Girl Who Could Knock Out the Hulk, Doctor Doom and the original Reed splicing things from other universes into the MCU to try and make it harder for Thanos to harm Earth is both a reflection of how the author keeps finding new franchises that they like and finding ways to insert them into the Kryptonverse, and an In-Universe justification for the Massive Multiplayer Crossover nature of the setting. Doom and Reed’s explanation of all this to Kara also gets very meta in places, like in describing Kal-El’s role in the DC universe and why he didn’t get sent to the Kryptonverse instead of Kara, and when we see the event itself Doom even refers to the natives of Earth-16 as "characters". The chapter can also be seen as meta in regards to the author's views of their previous attempts at writing for the Kryptonverse, as their previous fics that were meant to kick off the storytelling multiverse were dropped and are shown as prior failed iterations of the universe that Reed and Doom show Kara.
  • Legacy Character:
    • Unlike the main series, Ben isn't the first wielder of the Omnitrix. His grandfather was the previous wielder and it had fifty one bearers prior to him.
    • Titanium Man serves as this to the Iron Monger, as his suit is an advanced version of the suit Obadiah used.
    • Ivan Vanko/Whiplash is succeeded by a female mercenary that gets dubbed Whiplash 2.0.
  • Let's You and Him Fight: Varvatos and the Tarron siblings briefly mistake the Alien Force for bounty hunters sent by Morando, due to them not being completely human. This leads to a brief fight between Ben and Varvatos, but when Ben makes it clear he's not trying to kill Varvatos, Aja calls him off so that the groups can actually communicate.
  • Like Parent, Unlike Child: More than once it's noted that it's hard to believe that Max's children were remotely related to him at all, given what they're like. Even Coulson has a hard time reconciling how someone as noble as Max Tennyson gave birth to such awful parents, even going so far as to call them "devil spawn". Luckily Ben and Gwen take after Max, so it may have just skipped a generation.
  • A Lighter Shade of Black: Played with regarding the Diamonds. Blue Diamond is considered to be the more diplomatic and overtly kind between her and Yellow, but at the same time, she suffers from a severe case of Mood Whiplash and is more shatter happy than Yellow even before Pink Diamond's death messed her up. While Yellow is more overtly stern and ruthless, she's easier to read so one can know where they stand with her. With Blue, she may act nicer, but it's harder to tell what will set her off, and her wrath always entailed death.
  • Locked Out of the Loop:
    • Rose was the only member of the Crystal Gems to make contact with the Masters of the Mystic Arts or S.W.O.R.D., leaving the others with little knowledge about them.
    • Averted in the case of Tulip's parents. She didn't have much of a choice but to tell them about the Train as she had to explain her 5 month disappearance somehow, and that's not even mentioning trying to explain why she doesn't have a reflection anymore.
    • The information that the royal refugees have on Earth in The Royal We is several decades out of date. They don't even know that the Kree Exlusion Zone was lifted some time before they arrived.
  • Logic Bomb: Sabrina briefly manages to do this to her Akumatized father by bringing up the fact that trying to kill Chloe while serving a terrorist like Hawk Moth directly violates all the laws he's obsessed with upholding. Unfortunately, Hawk Moth pulls a Villain Override on him in response.
  • Lotus-Eater Machine: Chapter 33 of The Girl Who Could Knock Out the Hulk sees Kara being subjected to the Black Mercy by Doom, sticking her in a constructed reality where Krypton transported its population via an artificially constructed new planet to Earth's solar system, where Kara is now an ambassador and happily married to Lena. The illusion starts to break down when Doom projects a portion of his subconscious into Kara's in order to communicate with and test her, and she ultimately chooses to reject it.
  • Magical Underpinnings of Reality: As in one of the source materials, at least on Earth, the various deities are responsible for embodying and maintaining reality as humanity knows it, which is why Nico is sure that if the Faceless got their wish for a world void of gods, it wouldn't be very survivable for them or anyone else.
  • Magic Versus Science: Like in some of the component series, high levels of magic tends to screw with tech. Word of God is that Doom is one of the few people in the entire universe that can combine them fully.
  • Massive Multiplayer Crossover: There's around a dozen series placed in this setting already, with more likely to come.
  • Master of One Magic: Claire tells Gwen that most human magic users in the Kryptonverse tend to focus mainly on a specific branch of sorcery that they're particularly attuned to, like Claire's own Casting a Shadow magic, as magic is difficult for humans at the best of times. That said, with enough practice it still should be possible to learn and use spells outside that specialty, which makes how it's seemingly random if Gwen can use a spell or not particularly weird.
  • Memory Gambit: As part of the Miraculous team's Batman Gambit to discover Hawk Moth's identity, Rose agrees to get herself Akumatized, then allows her memory of the conversation be erased so that Hawk Moth won't pull that thought from her head and realize that he's being played.
  • Merged Reality:
    • According to Ford and Eda, the Boiling Isles are the result of the remains of a dimension that was either externally destroyed or internally collapsed drawing in and mixing with the leftovers of other similarly destroyed dimensions.
    • It turns out that the whole series setting is one — Doom and Reed Richards have been using Cosmic Retcons to add elements from other universes into what was originally the canon MCU.
  • The Milky Way Is the Only Way: Averted. Stories that take place beyond Earth, such as Close Encounters of the Gem Kind and Eternity in Promise explore the regions beyond the Milky Way and emphasize the vast scope of the universe. If anything, the Milky Way is actually widely considered a cosmic backwater to the universe at large.
  • The Multiverse:
    • Characters like the Azmuth AI and Ford hint at the existence of a greater collective of universes beyond the current one.
    • The Multiverse and its mechanics get discussed more thoroughly in Chapter 27 of The Girl Who Could Knock Out the Hulk by Doctor Strange explaining it to the Avengers in regards to Doom being from another universe.
    • The author's notes for the Invincible (2021) fanfic Just One Dimension Over reveal that the two stories take place in the same Multiverse, though any potential intersection between them is far in the future.
  • Mutual Kill: According to the Codex, the eons-long war between Primus and Unicron ended with them killing each other, their remains eventually merging together to create Cybertron.
  • Mythology Gag:
    • Titanium Man using a Tesseract-powered Unibeam to incapacitate Supergirl caused her costume to suffer from Clothing Damage that resulted in her stomach being exposed and causing it to resemble her Post-Crisis outfit.
    • Ben and Gwen briefly muse on what would have happened if Ben had gotten the Omnitrix when he was an "obnoxious" ten-year-old, which is of course what happened in canon.
    • At the climax of Vilgax's invasion, the Omnitrix samples Kara's DNA and turns Ben into Power Girl, essentially creating a clone of Supergirl, as Power Girl is in the DCAU. Power Girl's form is even based off the DCAU clone, Galatea.
    • Brand notes the belief held by some that Thanos is only driven by an obsession with death, which unlike in the MCU is the case in the comics (though in that case, it's a Stalker with a Crush kind of way, since Death is personified).
    • Danny mentioning how Fury broke into his apartment to recruit him is one to Spider-Man: Far From Home where he did the same to Peter when he was on vacation.
    • S.W.O.R.D. uses a gold/white/red color scheme for its vehicles and troopers, which is based on the time travel suits used by the Avengers in Avengers: Endgame.

    N-Y 
  • Naked People Are Funny: Following the climax of Changing of the Guard, Claire gives Gwen a glamor amulet to hide her Anodite form until they figure out how to fully restore her to her human state. It works, but then they realize that it failed to account for the prior total destruction of her clothes during the fighting, leading to a brief moment of embarrassment for both of the girls and the onlooking Kevin.
  • Nebulous Evil Organization: In MCU canon, Project Centipede was a subset of HYDRA. Here, it's a coalition of various factions pooling resources in a competition to see who can Take Over the World first.
  • Nice Job Breaking It, Hero: When the rest of the Alien Force team fly the Rust Bucket into the Chimeran Hammer to rescue Ben, they ram right through the Mile-Long Ship's anti-gravity systems, causing it to start crashing towards the ground like a meteor (Vilgax damaging the redundancies by punting the Hulk and Supergirl through them certainly didn't help either). Fortunately, thanks to Supergirl and Ben as Power Girl, they're able to tow the ship into orbit and let it drift harmlessly into empty space instead.
  • Noodle Incident:
    • Nico and Anubis have apparently met, and they don't get along much.
    • Word of God is that Hera flipped when the Hercules movie came out, and was barely restrained from breaking divine law by going after the person behind it. Even then, she may have put in a request that, if the guy ends up in the Underworld, that his punishment should be extra horrible.
    • Thanatos Scowled reveals that Fury broke into Danny and Sam's place in New York and tried to recruit him to the Avengers.
    • Rose Quartz apparently had several encounters with the Ancient One, Max Tennyson, and S.W.O.R.D. over the years.
    • Pepper apparently first met Tony when confronting him over some numbers discrepancies, holding off his security with pepper spray, hence the nickname.
    • The ending of She Stole My Heart (and most of my valuables) largely glosses over the events of what would be the season two finale for The Owl House, in order to contradict the canon events as little as possible.
  • Normal Fish in a Tiny Pond:
    • The Milky Way's local powers like the Kree and Nova Corps are pretty powerful by Earthly standards...but the Milky Way is actually a bit of a cosmic backwater. The Diamond Authority is reportedly bashing the Kree hard, for example, and even the Galra are hard-pressed to deal with Gem forces, let alone Yellow Diamond. The epilogue of Close Encounters of the Gem Kind has Moonstone note that the Kree and Nova Empires are both in denial over how powerful the Gem Empire is, since they both like to think of themselves as the top dog in the universe. They're apparently almost entirely unaware of the even more expansive Galra Empire, and Moonstone notes that they're going to be rather shocked when they eventfully find out about how they're not even the biggest force in the local cluster.
    • Horde Prime's claim of being "Emperor of the Known Universe" is put in perspective when we learn he was just filling a gap in one of the spaces left by the Galra's overextension.
    • Jane Shepard is a highly skilled warrior with advanced weaponry and a powerful biotic, skills that let her quickly rise the ranks of the bounty hunting guilds in Knowhere, and even let her catch a Cybertronian bounty, much to everyone's surprise, but Verdona makes it clear to her that while she might be the "greatest warrior of all time" in her own reality, she's in a very different universe now, one where beings like Saiyans, Asgardians, etc. are running around.
  • Not So Extinct: It's generally believed in Asgard that Malekith wiped the trolls out after they aided the Asgardians against their Dark Elf overlords, but they instead managed to flee to Earth.
  • Obstructive Bureaucrat: The World Security Council's response to Vilgax's invasion of Arcadia Oaks is to have the National Guard quarantine the area and force the Avengers to handle it themselves. Hill notes that this is probably in retaliation to the team and Fury's recent actions.
  • Official Couple: Many of these are given by the tags for the stories when they aren't made clear in the fics themselves.
    • Tony Stark and Pepper Potts.
    • Percy Jackson and Annabeth Chase. They even live together in an apartment in Midtown and it's heavily implied that Annabeth is pregnant and she has yet to tell Percy.
    • Nico di Angelo and Will Solace are shown to be one.
    • Dipper and Tulip become a couple in their college years.
    • Marinette and Adrien become one during his birthday party.
    • Ben and Julie have been dating for a while when we first see them.
  • Offscreen Moment of Awesome:
    • According to what Stuart tells Ben and Kevin, Vilgax once fought Thanos and survived. Which, given what Thanos is capable of even without the Infinity Stones, is saying something.
    • Piccolo offhandedly refers to Captain Marvel as "Frieza's executioner", suggesting Carol fought and killed Frieza at one point. Later confirmed by Bardock that she did indeed kill Frieza.
    • Chapter 24 of The Girl Who Could Knock Out the Hulk ends with The Cavalry arriving to help the Avengers fight off Centipede reinforcements in OsCorp, setting up a big battle...and then the next chapter opens with Kara waking up in a hospital room a week later.
    • At some point in the past, Max teamed up with Kanjigar to prevent the Forever Knights from finding Trollmarket. This was eventually shown in full in Chapter 7 of From His Vantage Upon the Moon.
    • In the first chapter of Just Another Day at the Office, Jane Shepard is returning to Knowhere after capturing a Cybertronian bounty. Considering the fact that she's human and that the Decepticon in question, Flywheels, is several times her size, this is considered impressive even In-Universe, but we don't see the fight.
  • Operation: [Blank]: Project ATLAS is S.W.O.R.D.'s effort to reverse engineer a fleet of starships out of the captured Chimeran Hammer.
  • Orcus on His Throne: Losing Cinder makes Salem decide to wait for a while to make her big moves.
  • Our Ghosts Are Different:
    • The Ghost Zone ghosts are rather different than the Underworld ghosts Nico is used to. The former are fully tangible if they want to be and capable of powerful feats and abilities, showing up in Amity Park on a regular basis; while among the latter few can escape Thanatos and return to the mortal realm without being summoned by a necromancer, and even as a son of Hades Nico couldn't make his sister semi-corporeal enough to touch her, let alone enough to assume some semblance of life like Amity Park specters can.
    • Valerie later elaborates that as ectoplasm collects and ages, it tends to mutate into ectopuses, which can either be consumed by another ectopus, eat enough other ectopuses to evolve into a native Ghost Zone entity, or merge with a human soul with Unfinished Business binding it to Earth, creating what Amity Park thinks of when they think of a ghost. Danny later clarifies that ghosts don't have organs, bones, or a nervous system, and don't even feel pain the way that humans do, as their bodies are basically just globs of ectoplasm modeling themselves around the human soul that they're melded with. You can hurt them, but unless you completely destabilize them they'll bounce back eventually. Half-ghosts, while resistant to damage, still bleed just fine though, and half-ghosts are also apparently guaranteed to become a full ghost on death (Vlad did, the others aren't willing to test it).
    • Harry Potter-style ghosts are the result of wizard/witch ghosts being more strongly connected to the mortal plane due to their hodgepodge cultural beliefs meaning they don't quite belong in any of the afterlives. Those who do move on tend to be taken directly by Death itself.
  • Our Goblins Are Different: Tales of Arcadia-style goblins are the main variety, with Harry Potter ones being a subspecies with a more human-like intelligence.
  • Our Gods Are Different: Comes up quite a bit considering that the various source materials that make up the series have their own gods with varying rules.
    • According to Word of God, the Asgardians and the Olympians differ from each other outside of being physical gods. While they both are so powerful and comparable that it would be impossible to tell the difference at a glance, the individual Olympians are the Anthropomorphic Personification of aspects of nature or concepts and have Complete Immortality barring their sphere of influence falling out of favor with mankind. Asgardians, meanwhile, are more akin to Sufficiently Advanced Aliens with power on an identical scale to gods, and while killing them is certainly a feat in of itself, they can be felled in battle and they do age, so they are not immortal like their Olympian counterparts.
    • This also applied to the Kwamis and how they differ from the Asgardians and Olympians. Word of God states that they're more like the Egyptian gods from The Kane Chronicles in that with few exceptions (Plagg and Tikki), the only method they have in terms of interacting with the mortal world is through a Miraculous Holder, which has many limits on the Kwamis power so as not to cause untold destruction and harm to the world. They were also all originally one being, which supplemental materials reveal to be a Celestial, and another reason for the Miraculouses being made was to try and counter the pull they feel to reunite again.
    • The Diamonds are specifically compared to gods more than once with how much more power they have compared to "regular" Gems. Word of God is that nothing short of a Celestial could shatter their Gemstones in this universe.
    • Vilgax notes that whatever Ben thinks a "god" is, it pales in comparison to what a Celestial truly is. Apparently they created everything, matter, energy, magic, even the Multiverse as a whole. They spend their time in the Forge of Creation creating entire dimensions with a thought. And one is powering the Omnitrix, and as mentioned above, the Kwamis are all fragments of one that divided itself for some reason.
  • Our Mages Are Different: At the end of Thanatos Scowled, Nico explains the different kinds of magic users to Ellie — witches/wizards are those born with inherent magic due to being descended from a deity and/or having a divine being or demon lord as a patron, sorcerers are those who master the Mystic Arts through study and practice, and warlocks are those who make a Deal with the Devil in exchange for power. "Magician", meanwhile, is a catch-all term that applies to all magic users, but most prefer that their specific terminology be applied to them.
  • Our Minotaurs Are Different: In addition to the original Minotaur, some groups used dark rituals to make their own. While Asterius gained peace in death and spends his afterlife proving himself against champions in Elysium, the average minotaur is a dangerous, but dumb, monster.
  • Our Souls Are Different: Human souls are apparently functionally eternal, so Cessation of Existence isn't a possibility. Atheists that end up in the Underworld, since Hades takes in the souls that don't qualify for the afterlife they grew up with, are given the choice of a Death of Personality via a drink of Lethe water, but that's the closest it can get. Ghost Zone ghosts are formed when souls with Unfinished Business binding them to Earth are infused with massive amounts of ectoplasm, usually via an ectopus.
  • Our Vampires Are Different: According to Strange, vampires are mostly extinct, having been hunted extensively following Dracula's death at the hands of Abraham Van Helsing. The remaining groups live in hiding around the world, abiding by certain rules to coexist with modern society, and mostly feeding on animal blood.
  • Our Werewolves Are Different: According to Strange, werewolves are a diverse classification, coming in many different types of similar creatures.
  • Our Witches Are Different:
    • In this verse, the term "witches" — with "wizards" being the male counterpart solely for this classification — applies on Earth only to those magic users who are born with inherent magic, due to being descended (however distantly) from one deity or another. Those without that lineage who have to gain magic from study are termed "sorcerers", while those who gain it from a Deal with the Devil are "warlocks".
    • And then there's the Witches from the Boiling Isles, who are an entirely separate species from humans with their own inherent magic. Word of God is that, if Earth's magic users become aware of them, they'd consider the name fitting, given that the Boiling Isles Witches ultimately gain their magic from the corpse of the Titan.
  • Our Zombies Are Different: Strange dismisses Romero-style zombies as a Hollywood invention. The real thing is apparently closer to the Voodoo Zombie archetype, being sentient beings raised and controlled by a necromancer.
  • Perfect Solution Fallacy: This is the big sticking point of a major revelation in Chapter 34 of The Girl Who Could Knock Out the Hulk, as while Doctor Doom and the original Reed wishing to see Thanos defeated with little-to-no damage to Earth and humanity beyond what is necessary in the base MCU’s “script” isn’t really a bad thing, the lengths they’re willing to go to, including shoving new races into the Kryptonverse simply to serve as cannon fodder against the Black Order so Earth has less to deal with, shows that their (but especially Doom’s) obsession with a “perfect victory” on their own terms has made it impossible for Kara to bring herself to work with them.
  • People Zoo: Eternity in Promise reveals that Blue Diamond's human Zoo, though unseen, is the reason that humans exist elsewhere in the Milky Way, escapees from the Zoo managed to interbreed with the Xandarians who rescued them.
  • Person of Mass Destruction:
    • The Celestials were this on a cosmic scale. When Azmuth brings them up, he mentions that they left ruined solar systems in their wake.
    • Iron Man's Hulkbuster armor, based on it's design and blueprints, is stated to have enough raw firepower to singlehandedly wipe NATO off the map.
    • Once Ben unlocks the Omnitrix Master Control, he shows exactly what the Omnitrix lets its wielder do when unrestricted by time limits.
    • Anodites who have mastered their powers are apparently among the higher tiers of cosmic beings, particularly because their durability is high enough that, at least according to Vilgax, actually killing one would require an Infinity Stone.
    • Ms. Bustier, having a decent knowledge on the supernatural and other entities, mentions that even minor deities carry enough mythical power in them to reduce entire continents to rubble. It's also confirmed that major deities from different pantheons have enough mythical power to be classified as planet killers. Even the tiny and cute Kwamis, without their Miraculous to act as a Power Limiter, would be beyond what even Supergirl could hope to survive channeling. Canonically Plagg did wipe out the dinosaurs and destroy Atlantis, after all.
  • Pieces of God: Pollen says at one point that the Kwamis were all part of a singular being, and that they've always felt a pull, like that entity would like to become one again. Part of why the Miraculous were made, and the Kwamis bound to follow the orders of those who wield them, was so they'd be unable to undergo that reunification without the prompting of their Holders, but it just passed that pull onto them. The official Kryptonverse timeline reveals that this being was a Celestial.
  • Plot Hole: Invoked, as Chapter 34 of The Girl Who Could Knock Out The Hulk reveals that some of the little inconsistencies of the Kryptonverse, like the Absence of Evidence regarding Krypton, are the result of the alterations and additions that Doom and Reed have been triggering the Celestials to do not fitting together completely cleanly.
  • Politically Incorrect Hero:
    • Averted. Kara comments that it's rather shocking how open-minded Captain America is about her sexuality since he grew up in the 1940s, where such a pro-LGBT mindset was practically non-existent.
    • Zig-zagged with Howard Stark. According to Tony, while he wasn't prejudice against African Americans like most from his era were, he was very admonishing of his son for being pansexual.
  • Politically Incorrect Villain: Not exactly "villain" per say, but Jameson is notoriously homophobic and xenophobic, insulting Supergirl in his papers as an "illegal alien" and raising Lena in conservative values that resulted in her being Armored Closet Gay. He also believes strongly in gender roles, as he reportedly raved and ranted when Pepper was named CEO of Stark Industries.
  • Poor Communication Kills: Eda thought that Ford was merely Stan's Alternate Self rather than his twin, so she didn't offer to let him use her portal back to Earth.
  • Pop-Cultural Osmosis Failure:
    • According to the author, Hawk Moth calls Roger's Akumatized form "Robocop" simply because he's so out of touch with society and pop culture that he's never heard of the movies.
    • Allura, being an alien, has never heard of Princess Leia. Pidge lampshades this, saying that they need to give her and Coran a crash course in human pop culture.
    • Doctor Strange has never heard of Twilight.
    • Admiral Sanda has never watched Star Wars, so she misses a reference to the Death Star. Considering that Hala's seen the movies...
  • Powered by a Forsaken Child: Caline believes that Hawk Moth is sacrificing animal souls in order to corrupt the Butterfly Miraculous to his goals.
  • Power Limiter: As in canon, the Miraculous act as this for the Kwamis so they can safely interact with the mortal world, with the added wrinkle of the Kwamis being fragments of a greater being, with the Miraculouses having been partly been made in an attempt to negate the pull they felt to reunite with each other. This is particularly noticeable with the Black Cat and Ladybug, as even after taking of their own Miraculouses fifteen minutes before temporarily swapping them, Marinette and Adrien still felt a strong urge to combine them. It's later made very clear that not even Supergirl could withstand the full power of a Miraculous without their limiters.
  • Proud Warrior Race Guy:
    • Bardock, due to his Saiyan mentality, expresses frustration that Captain Marvel saved them from Frieza, believing that they should have solved the problem themselves.
    • Vegeta is another Saiyan example, as he's rather annoyed by how the Saiyans have gone from fighting purely for the sake of being conquerors to only being mercenaries.
  • Psychic Block Defense: As a result of being exposed to Bill Cipher for so long, the Pines have apparently developed a resilience to psychic effects. Unfortunately for Luz, she lacks this resistance, so the Gremoblin's Your Worst Nightmare gaze is significantly worse on her than it is on them.
  • Quantity vs. Quality: The dynamic between the Galra and Gem Empires, respectively. The Gem Empire has control of much less total space than the Galra Empire does, but they have a presence in every star system that they control in their home dwarf galaxy, Cassiopeia, while the Galra can only sustain bases on roughly 7% of the star systems in the average galaxy. The Galra Empire has also expanded a lot more than the Gem Empire has done in the last 10,000 years, but only because the Gem Empire actually takes the time to extract all the valuable resources from a system before moving on, with Moonstone outright saying that if the Diamonds weren't as thorough they'd probably have conquered the entire universe by now. And that's not even going into how Gem soldiers have none of the limitations of organic beings and can reform their bodies unless their Gemstones are destroyed, along with their specialized abilities and how they are Born as an Adult without needing decades to mature and train only to die of old age (which doesn't happen to Gems), or how Gem technology and warships are more advanced than the Galra versions. Early on in Close Encounters of the Gem Kind, even before Yellow Diamond gets personally involved in the Gem/Galra battle the Gem forces clearly have the advantage, with their ships being only lightly damaged while the more numerous and significantly larger Galra ships are more heavily damaged or even destroyed.
  • Rage Against the Heavens: Both Hercules and the Faceless ally with Doctor Doom in order to wipe out the gods, the former as revenge for a lifetime of torment and the latter because they've renounced the gods and their position over humanity.
  • Ramming Always Works: Subverted. In Chapter 14 of Changing of the Guard, Hala rams the Azure Lance into Vilgax's ship to try and stop his advance on Earth. As we see next chapter, this barely slowed him down and only succeeded in leaving wreckage scattered across his hull.
  • Realpolitik:
    • The Nova Corps allow the member worlds of their empire to do anything they want short of things like slavery so long as they stay members. This is why they don't intervene in Morando's coup on Arkiridion V, along with the fact that fighting him would destroy the military resources they'll need to face the Black Order.
    • Small-scale, local politics version — according to Chloe, the only reason her father supports Paris' LGBTQ community is because that gets him more votes than pandering to the religious crowd. The fact that Chloe feels the need to hide her real sexuality from him would suggest that his personal opinions are far different.
  • Recursive Fanfiction: In regards to Moonstone, who isn't the author's OC, but one made by Artifiziell. The same applies to the fusion between her and a Ruby, Bixbite, as well.
  • Refusal of the Call:
    • Danny told Fury, and reiterates to Strange, that he has no interest in returning to heroics after being retired for several years, not least of all because of the events of his Final Battle with Vlad.
    • After having lived through the whole war hero thing, Harry flatly refuses to join Strange's team. There's a reason the story she appears in uses this trope as its title.
  • Related in the Adaptation:
    • Broly is Kale's older brother in this series.
    • Caulifla in this series is the younger sister of Goku and Raditz.
  • Required Secondary Powers:
    • If Goop's anti-gravity generator is destroyed, the Omnitrix can generate another.
    • Kinecelerans like XLR8 are naturally friction-resistant, and don't conduct electricity, since otherwise the sheer static would electrocute them whenever they tried moving at high speeds.
  • Retconjuration: Doom and Reed are from the MCU, and turned it into the Kryptonverse by using captured gods as catalysts to have the Celestials retroactively insert all the non-native elements into it as if they were always a part of it, over many iterations, as part of a plan to defeat Thanos without risk to Earth.
  • The Reveal: Chapter 34 of The Girl Who Could Knock Out the Hulk is full of reveals: Doom is working with an alternate version of Reed Richards. They are from the MCU, and were so traumatized by the Snap and its aftereffects that they've been rebooting and altering the timeline repeatedly to try and create an Earth strong enough to defeat Thanos before he can get the Infinity Stones.
  • Ridiculously Human Robots: Life Model Decoys are confirmed to exist in this universe, having been invented by Howard Stark after the Kennedy assassination, but with the concept eventually being abandoned due to how prone the LMDs are to breaking down as a result of their complexity. Doctor Doom later stole some and perfected the tech to create his Doombots.
  • Right Hand Versus Left Hand:
    • S.W.O.R.D. is deliberately keeping S.H.I.E.L.D. in the dark about what's happening in Arcadia. According to Coulson, this is actually quite standard for the two agencies' relationship, as they tend to avoid communicating with each other about anything; when Julie comments how this seems to reduce their effectiveness, he agrees.
    • In Thanatos Scowled, Strange sends Nico to Amity Park to try and recruit Danny Phantom for his team of magical heroes. Fury had already known that Danny was living in New York City, and that he had tried to recruit him for the Avengers after the Chitauri invasion, but got turned down, none of which he seems to have told Strange.
  • Ripple-Effect-Proof Memory: Several characters have shown an ability to retain their memories of the Cosmic Retcon events that Doom and the original Reed get the Celestials to trigger.
    • Doom and Reed themselves retain the memories of previous iterations of the Kryptonverse, given that they're the ones causing the retcons in the first place.
    • Kara remembers the reality before the retcon in Chapter 34 due to being at ground zero of the change, as do Thor, Bruce, Strange, Dani, and Nico.
    • Hecate has retained her memories since Doom revealed the truth of the Kryptonverse to her.
    • Thanks to Kara interfering with the process by rescuing the goddess Doom had captive to power the change, Jane Shepard and EDI remember their lives in their original reality before being dragged to the Kryptonverse.
    • Word of God is that Taneleer Tivan is capable of remembering the changes to reality due to his status as a Cosmic Entity, but he actively represses the pre-change memories because it'd be boring to be aware of the differences.
  • Sadistic Choice: During the fire, Tony is forced to choose between saving Tadashi and Callaghan. It’s hard, but he ultimately forced to choose the former.
  • Sadly Mythtaken: While All Myths Are True is the case in this setting, Nico notes that many of the Greek myths that actually happened have been warped over time since Ancient Greece, like a 2,000+ years game of Telephone. He gets a taste of what mortals who find out that the Olympians are real must feel like when Danny tells him that Pandora is a native Ghost Zone entity who was never human, and that the Box is really a container for dangerous, feral ghosts instead of the source of all the humanity's evils.
  • Screw the Rules, I'm Doing What's Right!: Nova Prime orders the Nova Corps and everyone connected to it, including Captain Marvel, not to get involved in Morando's coup or his pursuit of the Tarron siblings. Carol's immediate reaction to this is to alert S.W.O.R.D. to what's happening and the siblings' impending arrival on Earth, because they need help and it's the right thing to do.
  • Sealed Evil in a Can: At the climax of Changing of the Guard, Ben seals Vilgax in Diamondhead's crystal, putting him in stasis until they need him as a weapon against the Black Order.
  • Secret Identity: Played with throughout the series.
    • Contrasting the series, Supergirl averts this due to using her powers in her civilian identity in full-view of the public.
    • Unlike the show, Chloe actually tries to maintain her secret identity whenever possible. However, as Ms. Bustier finding out, her having to reveal herself to both Marinette and Adrian, and Juleka suspecting her/later figuring it out shows, she's really bad at it.
    • Lampshaded by Danielle/Ellie when Valerie crashes into the bus she's talking to Nico next to and asks for help regarding Technus.
    • Near the end of Thanatos Scowled, Nico suggests that this trope is going out of style among heroes, if the Avengers are any indication.
  • Secret Test of Character: Doctor Doom attaches a Black Mercy to Kara, trapping her in her idealized reality with no memory of the real world, and then restores those memories to see which reality Kara picks. He's genuinely impressed when she chooses to reject it.
  • Seen It All:
    • Many of the characters start moving towards this as more supernatural stuff starts coming out of the woodwork. Danny's response to hearing that Nico's a Greek demigod is that it sounds just ridiculous enough to be true.
    • The Terminus Systems are full of so many oddities that no one raises an eyebrow at an AI like EDI showing up out of the blue and quickly establishing a large corporation.
  • Semi-Divine:
    • It's implied in A Cold Day In Erebus that the wizards and witches of Harry Potter are descended from ancient demigod children of Hecate. In Thanatos Scowled, it's revealed that they are her descendants, as well as those of other deities of magic.
    • Also in Thanatos Scowled, Nico wonders if Sam Manson is descended from Iris or Aphrodite when he sees her violet eyes, as their children are much more likely to have the more exotic eye colors.
  • Sequel Hook:
    • Close Encounters of a Gem Kind ends with a distress call in a modern Altean dialect, mentioning Etheria.
    • Changing of the Guard ends with Carol talking to Max and Rook about a coup on Akiridion-V, with the royal children fleeing to Earth. In addition, the Forever Knights are aware of Ben as well as the Trolls beneath Arcadia, and are definitely plotting something.
    • Thanatos Scowled ends with Nico and Ellie heading to the UK to recruit a witch for their team.
  • Set Right What Once Went Wrong: This is the end goal of Doctor Doom and the original Reed Richards. As they seek to defeat Thanos with minimal damage to Earth and humanity. When time travel failed, resulting in a Pyrrhic Victory at best, they started to explore the Multiverse and came up with their plan to get the Celestials to Cosmic Retcon the universe to add the various crossover elements in order to make the world stronger.
  • Shame If Something Happened: Whitehall not so subtly threatens Adrien in order to make sure Gabriel doesn't let anything about their deal become public.
  • Shipper on Deck: It's implied that many of the Avengers are hoping for Kara and Lena to make amends and get together.
  • Ship Tease: After a Suggestive Collision, Lance compliments Pidge on her eyes, something she clearly enjoys.
  • Shout-Out:
    • The title of Close Encounters of the Gem Kind is a reference to the film, Close Encounters of the Third Kind.
    • The title of Thanatos Scowled is, according to the author, one to Atlas Shrugged.
    • Julie is a fan of Mass Effect. She also wonders if the Omnitrix has a Xenomorph form.
    • When Ellie learns that Nico is the son of Hades, she immediately references Age of Mythology. Nico notes that his father wouldn't appreciate the comparison, and also strongly dislikes the Disney Hercules movie.
    • Sisyphus having had his sentence commuted is a reference to Hades. When meeting with Thor, the Olympians also make themselves look like they do in the game.
    • The dwarf-made device the Asgardians use to harness the Bifrost is called a Oculory.
    • In the final episode of She Stole My Heart (and most of my valuables), Luz is playing a The Legend of Zelda game.
  • Sickeningly Sweethearts: Ben and Julie tend to act like this from time-to-time, something Kevin exasperatedly lampshades.
    Kevin: Ugh, just look at you two. You look like you're married. Like, with kids.
  • Single-Biome Planet: It's noted that Earth is unique for not having this, as most planets only have a singular environment, or at least one limited to only a couple of variations.
  • Slavery Is a Special Kind of Evil: The Nova Empire is usually fairly hands-off with the local politics of the member worlds, but according to Carol slavery is one of the things that gets them to intervene.
  • The Slow Path: Doctor Strange surmises that when Doom triggers a Cosmic Retcon he actually has to live through the events that he changes if he would have been around for them.
  • Small Name, Big Ego: Downplayed. According to this Word of God post, Horde Prime was still an incredibly deathly threat to any who opposed him, but thanks to his near incalculable arrogance, he heavily overestimates the scope of his empire and believed himself to be the absolute ruler of the entire universe when in actuality he barely held control of a small portion of it.
  • Smarter Than You Look: According to Banner, due to sharing the same brain, the Hulk is actually just as intelligent as Banner himself despite him coming off as Dumb Muscle, it's just that he doesn't care for anything that doesn't involve fighting or punching things.
  • So Crazy, It Must Be True: When Danny hears Nico tell Sam that he's a Greek demigod, he notes that it sounds just ridiculous enough to be true.
  • Spanner in the Works: Salem losing her chance to obtain Cinder as a minion threw off her plans to the point that the Grimm Queen is essentially deciding to wait for an entire generation to pass to make her big moves.
  • Spared By Adaptation:
    • The entire Saiyan race was never wiped out by Frieza, so King Vegeta, Bardock, Gine, and the rest are still alive.
    • In this universe, Summer Rose is still alive. In canon, she was presumed dead with no body.
    • Thanks to Tony being present, Tadashi manages to survive the fire.
    • Fred Weasley and Tonks both survived the war with Voldemort.
  • Spit Take: Ms. Bustier has one when Chloe mentions having re-lived Cat Noir's kiss with Ladybug during the temporary Psychic Link her Hive Mind ability gave the three heroes during the fight with Robocop.
  • Start of Darkness: Chapter 9 of From His Vantage Upon the Moon explores in more detail how Doom and his Reed were set down their villainous path, which previously had just been discussed as an Info Dump in The Girl Who Could Knock Out the Hulk.
  • Steel Ear Drums: Averted. In the massive battle between Centipede forces and the Avengers that Lena and Skye get caught between, they both find the constant gunfire deafening and have to cover their ears for most of it.
  • Stepford Smiler: Pidge notes that Carina's smile is incredibly forced, showing how much she hates being the Collector's slave.
  • Stronger with Age: As shown in the battle between Volpina and Hawk Moth, both of whom are adult Miraculous holders, Kwami hosts can access more of their power the older they are.
  • Sufficiently Advanced Aliens: Various alien races, such as Gems, Galra, Kree, and Asgardians, all fit this in one way or another due to hyper-advanced technology. Pidge calls Gem tech the most advanced she's ever encountered (and she works with Altean magitek) while Moonstone states that the Kree were already working with industrial machinery by the time humanity was just starting to form stationary civilizations.
  • Supernaturally-Validated Trans Person: Harry's gender-neutral status is backed up by a statement from Hermione about how the spells on the Hogwarts dormitories that keep the genders separate never spat them out of the boys side.
  • Superpower Meltdown:
    • Besides combining the Black Cat and Ladybug (when temporarily swapping their Miraculouses in this series, Adrien and Marinette had to take off their originals for fifteen minutes beforehand and they still felt the urge to unite them pretty strongly), a Miraculous Holder can still use two at once here, but it's more difficult, though it can be done full-time with age and experience. Using three or more at once though, and you'll last a few minutes at best even with that experience before the power incinerates you. Even collecting several and not using them would be too much, according to Lady Noire, as even when the Kwamis don't inhabit the Miraculouses there's a magical link between the wielder and Kwamis, a give and take. You barely notice this lifeline with one, but with several it's too much, as humans weren't just built to handle that much magic coursing through them at once. And this is with the powers restrained, more powerful beings than humans might be able to handle more, but even Supergirl wouldn't last very long with the unfiltered power of a Kwami flowing through her.
    • The epilogue of Changing of the Guard has Max and Rook investigating a Nova Trooper who used a power called the "Nova Force" to save a village, but burned himself up in the process.
  • Synchronous Episodes:
    • Chapters 18 and 19 of Changing of the Guard and Chapter 28 of The Girl Who Could Knock Out The Hulk show their respective POVs of Vilgax's invasion of Arcadia Oaks and the counter-attack against him. Meanwhile, the first chapter of From His Vantage Upon the Moon shows Strange and Thor's meeting with the Olympians that they were tied up with while the Avengers were first setting out for California, and the fourth chapter shows Charlie and Bumblebee's group's reactions to the attack on the town.
    • The first few chapters of Just Another Day at the Office happen simultaneously to the events of Changing of the Guard, showing what Shepard was doing while that story was unfolding.
  • Take That!:
    • The author doesn't like how easily removable the Omnitrix became over the course of the canon series, so it's made clear that it's pretty much permanently merged with Ben now.
    • Krabb assuming that Gwen is Ben's mate, and not getting why Ben is disgusted even after the latter corrects him they're cousins but Krabb still assumes that they're mates despite that could be this to the Kissing Cousins portrayal they sometimes get in the fandom.
    • The author takes a dislike to the stance of Ben never getting to keep the Master Control active, viewing it as an annoyance even in the animated shows where Status Quo Is God is in effect, so it's apparently here to stay after the Azmuth A.I. unlocks it so Ben can fight Vilgax, though it just removes the time limit, and doesn't allow him access to any more transformations than he already had.
    • Vilgax's lambasting of Thanos' plans, Ben's agreeance with the utter insanity of it, and, as noted by the Tumblr preview of Chapter 17 of Changing of the Guard, is this towards anyone who thinks Thanos' genocidal plans that are riddled with Insane Troll Logic at best are actually a good thing when they clearly highlight how utterly demented he is.
    • The author admits that J.K. Rowling's actions have made her a Broken Pedestal to them, and the Harry Potter elements of the setting have been altered rather extensively to work out some of the nastier elements. Also, the reason Harry has undergone a Gender Flip and is presented as gender-neutral, is a stab at Rowling's transphobia.
    • The author hates the modern concept of zombies, so during one of Strange's Info Dumps about magical creatures in the setting, it's established that they're more akin to the classic Voodoo Zombie archetype.
  • Take Up My Sword: Discussed. Ladybug asks Queen Bee to take her Miraculous and become the new Ladybug in the event that she falls against Hawkmoth. When Chloe asks why she doesn't give it to someone she's known for longer, like Cat Noir, Ladybug explains that due to him wielding the Miraculous of Destruction, giving him the Miraculous of Creation in the event that she falls is a really bad idea.
  • Throw-Away Guns: During the Battle of New York, Winn helped fight against the Chitauri by grabbing whatever laser guns they had lying around and firing on them, picking up more guns when the previous one stopped firing due to him having no idea how to reload ammo for them.
  • Time Abyss:
    • The Collector claims that he's been alive since the dawn of creation, which would make him several billion years old at the youngest.
    • The Omnitrix itself is somewhere in the ballpark of 100,000 years or less, having been created at a time when the Celestials still roamed the universe and the Asgardians were still in their early warmongering days.
    • Moonstone states that she stopped keeping track of how old she is after she turned 10,000 and she at most assumes that she's 12,000. Pidge even states that she's older than human agriculture.
    • As in canon, the Kwamis are this. Pollen mentions that she, as one of the older Kwamis, was born when the stars were young, and that even before Tikki and Plagg (the former of whom was born at the same time the universe was if canon's lore still applies) there was an entity that all the Kwamis were once part of before that.
    • As in canon, the older Gems, particularly the Diamonds, have been around for many thousands of years at the minimum. The only thing holding them back from complete universal domination is their desire to strip all useful resources from a system before moving on, which they aren't in any hurry to do because of their immortality. Hell, one of the normal colonization methods they use amounts to "wait until the planet's species goes extinct on their own".
    • Vilgax claims that the Celestials, who are merged with the Ben 10 Celestialsapiens (Alien X's species) actually made the Multiverse and everything in it, making them as a species the current record holders for "oldest beings in existence".
  • Time Stands Still: Petrosapien crystals completely block the flow of time around anything encased, rendering it timeless. This is used to capture Vilgax in the climax of Changing of the Guard.
  • Too Much Alike: Thanatos Scowled reveals that Nico and Anubis have met, and they don't get along much, apparently for this reason.
  • Transplanted Humans: The second chapter of Eternity In Promise reveals that the humans seen on Etheria and other worlds of the Milky Way are the descendants of escapees from Blue Diamond's Human Zoo who interbred with the Xandarians who rescued them.
  • True Companions: The Fantastic Four are this even before they were forced into a life of crime. They look out for each other and show concern when the other gets hurt. Ben even offers to take the fall for the whole team so the rest don't go to prison, but they refuse to let him suffer alone.
  • Ultimate Job Security: According to Abagail, the only reason that the Zeron Brotherhood hasn't been expelled from the Bounty Hunters Guild for their track record of heavy collateral damage is because they're just that good at their job.
  • Unholy Matrimony: Back in the day, Eda and Stan were this, as they were a couple and committed various crimes ranging from grand theft auto to insurance fraud. Stan even calls what they were a Lighter and Softer version of Bonnie and Clyde.
  • Unfinished Business: Danny Phantom-style ghosts are formed when a soul with an intense desire to stay alive, an emotional anchor keeping them around, fuses with an ectopus and gains an empowered physical form.
  • Van Helsing Hate Crimes: The Forever Knights view all non-humans as monsters to be destroyed, regardless of their actions.
  • The 'Verse: The stories, while rarely truly intersecting, all inhabit the same universe and have different references and nods to each other.
  • Villain Team-Up:
    • Chapter 32 of The Girl Who Could Knock Out the Hulk reveals that Hercules and Hecate are working with Doctor Doom, the former as a means of revenge against the Olympians and the latter to learn more about how Doom got his vast magical powers; Chapter 35 adds that she's also trying to create a timeline where none of her children die in the Titan or Giant wars.
    • Doom is also employing the services of the Faceless, a cult of Egyptian magicians who have renounced the gods and are aiding Doom because he's led them to believe he's planning to wipe them out.
  • War God: The Saiyans have one known as Oozaru, who is a giant golden-furred great ape.
  • We Have Become Complacent:
    • As part of the All-Powerful Bystander behavior the Ancient One got up to, she let many of the bridges her predecessors built lapse since her work and power alone was enough to stave off most supernatural threats to Earth. Now that she's dead, and with all the upheaval lately with things like the Titan insurrection and the Chitauri invasion, the powers that be can sense that Earth is vulnerable. This is part of why Strange is focusing on gathering young heroes who are familiar with supernatural threats, like Danny Phantom.
    • During the attack on Arcadia, Coulson notes that S.H.I.E.L.D. has failed to keep up with the nature of threats in a world where superpowered individuals and alien invasions are becoming increasingly common.
    • This is also a major issue with the Nova Empire. Long ago, they had access to the Nova Force and were an unstoppable army of peace keepers. After they managed to establish themselves, they retired their use of the Nova Force and settled down. Now with the threats to the galaxy becoming more apparent, they're relearning how to harness the Nova Force, but they still have a ways to go in that regard.
  • Weirdness Censor:
    • Adrien notes that the rest of the world doesn't even seem to notice that Paris is attacked by supervillains on a regular basis. Chloe later almost name-drops the trope when talking to Lady Noire and Mister Bug about how people outside of Paris know that they exist (though not to nearly the extent that they should, with even Spider-Man being more popular than the oddly obscure Parisian hero duo), the former of which notes that she and Tikki think that there's basically a magical bubble over the city preventing anything inside from affecting the outside and vice versa, like a giant version of the Glamour that protects the identities of the Miraculous holders.
    • The Mist used to enforce this, shrouding the senses of ordinary humans regarding the exploits of demigods and monsters, but of late it's becoming less and less effective at doing so. One theory is that this is at least partially because, with the superheroes and all the other craziness that's been showing up relatively lately, the idea of mythical creatures existing is a lot less farfetched, so the Mist can't exploit their disbelief like it used to. Hecate, who is in charge of the Mist, hasn't been answering Zeus' calls about it either. The Olympians are seriously considering deliberately revealing their existence to the world at large so they can at least handle it on their own terms.
    • Like Paris, it's noted in Thanatos Scowled that the fact that the exploits of Danny Phantom never made national, or even state news, was likely because of the Mist. That said, Nico notes the people of Amity Park seem to be able to see through the Mist more than normal, likely because they see ghosts regularly, and although Danny himself hasn't been seen in six years at that point, there's still a museum and a statue of him, among other things.
    • According to Word of God, the reason that no one's come across ancient Gem ruins or battlegrounds around the world is because Rose Quartz, wanting to avoid humans hurting themselves there, put up wards that act similarly to the Mist; as long as no one's actively looking for these sites, they can't find them. Although people who can see through the Mist like Rachel Elizabeth Dare can still find the sites regardless, even demigods and other magical humans are affected by it. The one place not so warded is the moon base, as Rose didn't expect humans to develop space flight, much to her surprise when a S.W.O.R.D. expedition stumbled onto it.
    • According to a blog post, Tulip missing her reflection is also obscured by the Mist unless she specifically points it out.
  • Well-Intentioned Extremist:
    • Through backing Project Centipede, and various other actions that haven't been fully detailed, Doctor Doom seems to be trying to toughen Earth and its heroes up to face the looming threat of Thanos. In fact, he and the version of Reed Richards he's allied with are so determined to stop Thanos getting the Infinity Stones that they've been altering the timeline repeatedly in order to put more heroes and allies at Earth's disposal.
    • Vilgax has torn through the universe to try and gain control of the Omnitrix… because he wants to use it to defeat Thanos before he can carry out his own plans.
  • Wham Episode:
    • The Girl Who Could Knock Out the Hulk:
      • Chapter 23 has Doctor Doom make his first appearance and not only easily dismantle the Avengers right after their recent victory against OsCorp and Centipede, but he even stabs Kara with an all too familiar emerald green dagger.
      • Chapter 27 not only has Doctor Strange reveal the existence of The Multiverse to the Avengers, but the fact that Doctor Doom is from another reality, and the chapter ends just as Thor returns to Earth.
      • Chapter 32 has Kara, Thor, Bruce, Nico, Ellie, and Strange searching the Labyrinth for Doom, and encountering his allies: Hercules and Hekate.
      • Chapter 34 is full of reveals that change everything: Doom is working with an alternate Reed Richards from the one the Avengers are aware of. And they're not technically from another reality, as Strange believed — they're from the canon MCU, which they've been altering by merging in elements from other universes in order to make Earth strong enough to stop Thanos from getting the Infinity Stones.
    • Chapter 19 of To Rule Alone, To Build Together has Chloe learn that Marinette and Adrien are Ladybug and Cat Noir, respectively.
  • What the Hell, Hero?:
    • A portion of the general public is less than thrilled with the Avengers after their unilateral attack on OsCorp, along with Stark Industries buying out a large chunk of the company to contain its illegal activities.
    • The Avengers are repeatedly pissed at S.H.I.E.L.D. for their various shady actions, like building the Titanium Man suit or having the Kryptonite dagger on standby.
  • Where the Hell Is Springfield?: Thanatos Scowled establishes Amity Park as being in Minnesota, near both the Great Lakes and the Canadian border.
  • The World as Myth: Shepard was a fictional character in the Kryptonverse before Doom added her dimension into the mashup.
  • World's Smartest Man: Tony regards Victor von Doom as this. Considering Tony Stark's the one saying it, that should say quiet a bit.
  • World's Strongest Woman: Supergirl is considered and referred to as this. As far as the Avengers go, she's stronger than Thor, but weaker than a fully enraged Hulk (though she starts out stronger than base Hulk).
  • Write What You Know: In-Universe example. Tulip changed her game based off her experiences in the train. So it went from a knockoff of Space Invaders to a point-and-click CYOA game exploring an infinite space station.
  • You Are Better Than You Think You Are: After Chloe discovers that Ladybug is Marinette and Adrien is Cat Noir, she starts to have a Freak Out, believing that they were just being nice to her so she'd give up the Bee Miraculous until they set her straight with this trope.
  • You Have Outlived Your Usefulness: In the rewritten version of The Girl Who Could Knock Out the Hulk, Doom cites this as the reason he kills the defeated Titanium Man.
  • Your Worst Nightmare: Luz is subjected to a dying Gremlobin's fear gaze, and due to not having the sort of built up resistance that the Pines family has, is trapped in an intense collection of her worst fears. First, she's in her normal school, experiencing an amalgamation of every bad experience she ever had there. Then she's at Hexside, with Amity mocking her extensively for not having inherent magic. And finally, she's informed that Eda has been imprisoned and her mother has come to take her home, with the nightmare ending as her mother starts berating her for running off.

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