History Characters / TalesOfTheDekuverse

* AdaptationalJerkass: {{Play|ingWithATrope}}ed with in ''MHA watches Death Battle''. In ''Welcome to the MCU'', Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In ''MHA watches Death Battle'' however, they're a lot less overtly benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}. [[spoiler:Chapter 37, however, has Zayden reveal to Kyoka, and the Sisterhood by proxy, that they ''can't'' deliberately hurt Izuku without effectively killing themself ''and'' damning their universe, if they even wanted to in the first place, and had no part in any of the girls' feelings for Izuku. Their goal is to ''improve'', not harm, after all, and they can only do so if the world is heading towards a catastrophic fate like the PLF War. After hearing this from Kyoka, Setsuna is initially skeptical of said claim due to Izuku's behavior during "Kratos vs. Spawn" and their own admission it occurred because ItAmusedMe, before realizing it was actually a case of being CruelToBeKind. While still a well-intentioned individual, ''MHA watches Death Battle'' has Zayden going about those intentions in a more roundabout, and somewhat harsher, method than in ''Welcome to the MCU''.]]

* BewareTheSillyOnes: They may be a {{troll}} at times, but as a multidimensional being, he's pretty much TheOmnipotent to the low-fantastical world of ''My Hero Academia'', and can be ''very'' dangerous to any {{Jerkass}}, whether they be a hero or villain, who tries to do harm to the cast. Just ask Monoma after spending the entire Phase 1 of ''Welcome to the MCU'' slandering the Class 1-A students, Inko, and what he plans to "libel" against Midoriya and Bakugou by using edited photos of himself doing various pranks. [[note]]As approved by the Council of Ricks and voted by himself and a fellow cohort, they have him suffer an AndIMustScream by perpetually falling into the [[VoidBetweenTheWorlds Void Sea Between Worlds]] for 3 whole hours (where it was only 30 minutes that had gone by in his native universe) as a ''slap on the wrist'', with Zayden placing a great emphasis of what happened to him will '''pale''' in comparison to whatever punishments that the Council of Ricks and himself can come up with if he continues to act up.[[/note]]

* RealityWarper: Zayden is capable of affecting the reality of the ''My Hero Academia'' world and its inhabitants in any way possible. Whether it'll be teleporting people to different places or even outside of their native universe or can induce emotions that they wouldn't otherwise be capable of on their own.
* TimeyWimeyBall: Zayden's perspective of time is very different compared to the inhabitants of the ''My Hero Academia'' world. As shown in Chapter 37 of ''MHA Watches Death Battle'', Zayden asks [[spoiler:Kyoka]] if ''[[Website/TwitterX Twitter]]'' is now rebranded as "''X''" from their point-of-view.[[labelnote:Context]]In 2022, ''Twitter'' was officially acquired by [[UsefulNotes/SpaceExplorationTechnologiesCorporation Elon Musk]], and while it retained the name "Twitter" for the remainder of 2022 and the first half of 2023, it would be officially rebranded as "''X''" on July 23rd, the same day Chapter 37 was published.[[/labelnote]]

* BewareTheSillyOnes: They have a relatively silly title but make no mistake, they're just as dangerous to the multiverse in a given situation as seen in ''WesternAnimation/RickAndMorty''. Especially when they approve of whatever Zayden has in mind for any {{Jerkass}} who tries to do harm to the heroes.

* AdaptationalAngstUpgrade: Izuku's DarkAndTroubledPast gets more [[AdaptationExpansion expanded]] in the fic, and is much darker in nature and PlayedForDrama. His DisappearedDad divorced his mother right after being diagnosed as Quirkless, was severely bullied, humilated, and discriminated against in both elementary and middle school to the point of torture; including but not limited to, assault and battery by Bakugou and many other students playing "follow the leader" on a ''near-daily'' basis that would end with him laying on the ground beaten, bloodied, and vomiting in addition to verbal insults (along with Bakugou illegally using his Quirk to permanently scarred his body), [[spoiler:gets manipulated into thinking that a girl in Aldera had feelings for him only to be in for a nasty prank]], and apathetic faculty members who either turn a blind eye and deaf ear to his suffering or actively/impassively encouraging it. He's also far more prone to HeroicSelfDeprecation whenever his worth as a hero is indirectly called into question along with having a hidden darker and spiteful side of him regarding those who tormented him in the past.

* FanOfTheUnderdog: Justified due to Izuku's own status as one, as ''Tales of the Dekuverse'' has him showed great respect and TearsOfJoy witnessing the accomplishments of BadassNormal heroes and ones who suffered greatly to get where they are now.
* FantasticAbleism: Which overlaps with FantasticRacism. He was a victim of this since he was the only Quirkless individual while growing up, leading him to be treated like a useless subhuman by his peers and teachers, with any form of discrimination by them explicitly and implicitly ''encouraged''.

* ObliviousToLove: Has a harem in the form of his female classmates as well as Nejire, Setsuna, Hatsume, and Melissa. He has no idea all of them are crushing on him. At the same time, he does show a sort of jealousy and possessiveness in regards to them and their counterparts so it seems he's oblivious to his own feelings as well.

* AdaptationalJerkass: Downplayed, justified, and deconstructed. In the canon manga, Katsuki started off as TheBully with the worst thing he had ever done to Izuku on-screen was telling him to go [[SuicideDare kill himself]] (which WordOfGod even says that that moment was an EarlyInstallmentWeirdness) and he's not above violence in his bullying (but to what extent is unknown). Here, as a result of the setting being more DarkerAndEdgier and the FantasticAbleism of Quirkless people being much more explicit, Katsuki's bullying of Izuku is far nastier; a near daily basis of physical beatings and even went so far as to ''scar'' Izuku's body with his Explosion Quirk (which Katsuki also committed illegal Quirk use), as well as having no problems with lying to authority figures about his bullying, even to Inko (who Katsuki view as an HonoraryAunt), giving him some minor BitchInSheepsClothing[=/=]ManipulativeBastard aspect. While his previous nasty behavior towards Izuku has improved dramatically with needed CharacterDevelopment like in canon, his past sins also give him a really bad case of HeroicSelfDeprecation (as well as the viewings subtly calling it out as well as his other beliefs) with his need for atonement becoming a crux in his personality.

* DarkSecret: Bakugou sees his bullying of Izuku in the past like this. A big part of the drama of the viewings is that he's worried that he will be exposed for his past misdeeds given revelations in the students' lives start coming about from them. [[spoiler:Given the likely ForegoneConclusion of his and Midoriya's past being revealed through the viewings, along with how all of their classmates' intolerance of bullying, he's right to be afraid.]]

** Izuku's mother Inko is his HonoraryAunt and he holds her in high regard. In fact, it's implied that he's more attached to Inko as an HonoraryAunt than Izuku is to Mitsuki given how Bakugou tends to use "Auntie" when referring to her whereas Izuku leans more toward calling Mitsuki "Aunt". The fact that he spent over a decade bullying Izuku in many ways while lying to Inko (a clear case of "having his cake and eating it too") only adds more weight to his guilty conscience.
** Even he isn't immune to CutenessProximity where Eri is concerned and also tries to get the others to behave themselves around her, in his own hot-tempered way.
* {{Hypocrite}}: A self-{{invoked|Trope}} one that is ''constantly'' {{lampshaded|Trope}} in his inner monologue whenever he (rightly) gets upset upon witnessing Izuku's multiversal counterparts being openly mistreated by others. As it only adds to his growing regret and guilt over how he himself had relentlessly bullied Izuku for over a decade and lied about it to his HonoraryAunt.

* KarmaHoudiniWarranty: {{Deconstructed|Trope}}. Make no mistake, while Katsuki is trying to improve himself and atone for his past bullying of Izuku (along with the fact that the staff and student body of Aldera Middle School has the lion's share of enabling and encouraging his worst aspects and shielding him from consequences), it doesn't excuse the fact that he still made the ''choice'' to bully Izuku in nearly all sorts of nasty ways for extremely petty reasons and whatever he told himself to justify it for ''over a decade''. Never mind getting away with it thanks to a combination of the systematic discrimination of Quickless people, [[ScrewTheRulesIHaveConnections being shielded in a social manner by opportunistic and bigoted faculty members]], and deceiving more reasonable authority figures, even his victim's mother, [[HonoraryAunt who he admits to having a soft spot for]] [[{{Hypocrite}} despite hating her son at that time]]. The deconstruction of this plays in with one of the {{Driving Question}}s of the fics' ForegoneConclusion of his DarkSecret being revealed, as by this point in time, Katsuki has already made leaps into his CharacterDevelopment for the better, though he's still arrogant and demeaning (but played in a VitriolicBestBuds way); is it '''''fair''''' for him to still be punished in the place of his Pre-CharacterDevelopment self and how proportional it can be before it gets ''disproportionate''?
* KarmicButtMonkey: Perhaps fittingly, he gets this status in ''Tales of the Dekuverse''. For ''MHA Watches Death Battle'', Katuski's multiversal counterparts get the short end of the stick for slapstick, which can be played either [[PlayedForLaughs comically]] or [[PlayedForDrama dramatically]]. All while also having a poor record of victories compared to Izuku's multiversal counterparts and learning that Izuku has a greater connection throughout TheMultiverse and is the designated "Main Protagonist" of their own universe. For ''Welcome to the MCU'', his MCU counterpart is ''Katsuki Stark''. Just like Tony Stark, Katsuki Stark's attempts at atonement are constantly met with suffering and humiliation, along with a bad tendency to accumulate [[NiceJobBreakingItHero long-term consequences due to past sins and trying to atone for said past sins]] to the point of a RunningGag. That's also not getting into the fact that in both fics, the chances of his DarkSecret being revealed is not a matter of "if", but ''[[ForegoneConclusion when]]''.

* TreacheryIsASpecialKindOfEvil: A notable case seen in the "Kratos vs Spawn" segment of ''MHA Watches Death Battle''. While Bakugou's BarbaricBully tendencies against Izuku were certainly bad, it's the betrayal that Izuku felt from the torment that really left leftover hatred and bitterness for the explosive teen. This is even lampshaded by Bakugou himself in chapter 38 of the same fic, seeing himself as BeyondRedemption because of this.
* WhatYouAreInTheDark: As he reveals his past to Ibara in ''Welcome to the MCU! Phase 2!'' (but not about Izuku), he always knew that deep down, the other teachers and students from both elementary and middle school are nothing more than sycophants and groupies with empty compliments for practically everything he does, yet, he cares for it so much that he would be do anything to keep the attention on him, even it means bullying others and justifying it in his head as "IDidWhatIHadToDo by putting them in their place" when it was really nothing more than him being an "insecure and petty piece of shit".

* AdaptationalAngstUpgrade: Izuku's DarkAndTroubledPast gets more [[AdaptationExpansion expanded]] in the fic, and is much darker in nature and PlayedForDrama. His DisappearedDad divorced his mother right after being diagnosed as Quirkless, was physically beaten by Bakugou on a ''near-daily'' basis in addition to verbal insults (leaving many scars hidden away), [[spoiler:gets manipulated into thinking that a girl in Aldera had feelings for him only to be in for a nasty surprise]], and is far more prone to HeroicSelfDeprecation whenever his worth as a hero is indirectly called into question.

* FantasticAbleism: Which overlaps with FantasticRacism. He was a victim of this since he was the only Quirkless individual while growing up, leading him to be treated like a useless subhuman by his peers and teachers, with any form of discrimination by them implicitly ''encouraged''.

* KarmicJackpot: Not only did he gain a Quirk to validate his dreams after years of ridicule and bullying in the canon series, but the viewings also give validation to his previous beliefs of Quirkless Heroes through Batman in ''MHA Watches Death Battle'' and Hawkeye and Black Widow in ''Welcome to the MCU''.

* SpiderManSendUp: According to Horikoshi, ''Franchise/SpiderMan'' is his favorite American superhero, and it isn't a surprise that Izuku's character, personality, struggles, powerset, and paragon status are inspired by the web-head and his many other iterations. In ''MHA Watches Death Battle'', it's only fitting that Izuku's multiversal counterpart is Spider-Man himself, alongside him and everyone else who's in the know of his past and One For All, acknowledging the similarities in-universe.

* AdaptationalAngstUpgrade: Izuku's DarkAndTroubledPast gets more [[AdaptationExpansion expanded]] in the fic, and is much more darker in nature and PlayedForDrama. His DisappearedDad divorced his mother right after being diagnosed as Quirkless, was physically beaten by Bakugou on a ''near-daily'' basis in addition to verbal insults (leaving many scars hidden away), [[spoiler:gets manipulated into thinking that a girl in Aldera had feelings for him only to be in for a nasty surprise]], and is far more prone to HeroicSelfDeprecation whenever his worth as a hero is indirectly called into question.
* AdaptationalKarma: {{Inverted|Trope}}. The viewings of both ''MHA watches Death Battle'' and ''Welcome to the MCU'' gives Izuku's previous beliefs of a Quirkless Hero validation.

** Do not show any signs of perverted tendencies to the girls that are crushing on him or their alternate selves.

** In ''MHA watches Death Battle'', some of his counterparts were either, betrayed by a close ally (i.e. Kratos and Spawn), grew up in abusive households and[=/=]or has an abusive parent (i.e. Luke Skywalker and Harry Potter), is permanently [[DeadAlternateCounterpart dead]] (i.e. Daisy the Rabbit, Liu Kang, and Zack Fair), or suffers from very similar circumstances (i.e. Spider-Man).

** Justified and downplayed in a realistic way with Bakugou. As both fics show, Izuku secretly still has lingering hatred toward him for his past betrayal and vicious bullying for over a decade, and it's very understandable since Bakugou, aside from peer pressure, was ''never'' forced by others into committing those actions. Never mind the fact that Katsuki was practically family to Izuku and when it came down to it in the past, [[FriendOrIdolDecision Bakugou would choose to stand by for a bunch of strangers who would constantly flatter him and would have no problems throwing him under the bus if he stops being useful to them rather than a kind-hearted boy who would always try to do the right thing for others even in the worst of times.]] Though, this will slowly be subverted once he and Katsuki truly reconcile down the line.

* FantasticAbleism: Which overlaps with FantasticRacism. He was a victim of this since he was the only Quirkless individual while growing up, leading him to be treated like a useless subhuman by his peers and teachers growing up with any form of discrimination by them implicitly ''encouraged''.

* AdaptationalJerkass: Downplayed, justified, and deconstructed. In the canon manga, Katsuki started off as TheBully with the worse thing he had ever done to Izuku on-screen was telling him to go [[SuicideDare kill himself]] (which WordOfGod even says that that moment was an EarlyInstallmentWeirdness) and he's not above violence in his bullying (but to what extent is unknown). Here, as a result of the setting being more DarkerAndEdgier and the FantasticAbleism of Quirkless people being much more explicit, Katsuki's bullying of Izuku is far nastier and reminiscent of his [[Fanfic/{{Cain}} Cain counterpart]], with a near daily basis of physical beatings and even went as so far as to ''scar'' Izuku's body with his Explosion Quirk (which Katsuki also committed illegal Quirk use), as well as having no problems with lying to authority figures about his bullying, even to Inko (who Katsuki view as an HonoraryAunt), giving him some minor BitchInSheepsClothing[=/=]ManipulativeBastard aspect. While his previous nasty behavior towards Izuku has improved dramatically with needed CharacterDevelopment like in canon, his past sins also give him a really bad case of HeroicSelfDeprecation (as well as the viewings subtly calling it out as well as his other beliefs) with his need for atonement becoming a crux in his personality.
* AdaptationalKarma: His barbaric bullying of Izuku in the past and more unsavory actions and MightMakesRight beliefs gets indirectly called out through the viewings in ''Tales of the Dekuverse'', especially when it adds to his already guilty conscience. If that wasn't enough, he also gets his pride wounded upon learning that in the grand scheme of TheMultiverse, he's one of the "extras" where Izuku is the designated "Main Protagonist".

* KarmicButtMonkey: Perhaps fittingly, he gets this status in ''Tales of the Dekuverse''. For ''MHA Watches Death Battle'', Katuski's multiversal counterparts get the short end of the stick for slapstick, which can be played either [[PlayedForLaughs comically]] or [[PlayedForDrama dramatically]]. All while also having a poor record of victories compared to Izuku's multiversal counterparts and learning that Izuku has a greater connection throughout TheMultiverse and is the designated "Main Protagonist" of their own universe. For ''Welcome to the MCU'', his MCU counterpart as Katsuki Stark has a bad tendency of accumulating [[NiceJobBreakingItHero long-term consequences due to past sins and trying to atone for said past sins]] to the point of a RunningGag. That's also not getting into the fact that in both fics, the chances of his DarkSecret being revealed is not a matter of "if", but ''[[ForegoneConclusion when]]''.

* AdaptationalRelationshipOverhaul: Compare to the canon manga, his friendship with Izuku is played up to be closer, to the point of being brothers in all but name and risking their lives for one another.

* HeroicNeutral: Similar to Izuku in ''MHA Watches Death Battle'', he would also seem to remain neutral in the voting of certain fighters that would personally involve two of Izuku's multiversal counterparts fighting each other, as seen in ''Batman vs Spider-Man'' and ''Batman vs Captain America''.

* RedeemingReplacement: His close friendship with Deku is played up to be this for the latter compare to the broken one he had with Bakugou.

* DimensionalTraveler: Everyone is capable of physically entering another world through their own means (magical, technological, etc), including the world ''My Hero Academia'' and its parallel ones.

* TheOmnipotent: Considering the nature of the multiverse and the various watchers and dimensional travelers, they're more than capable of doing the impossible compare to the low-fantastical world of ''My Hero Academia''.

* AdaptationalJerkass: {{Play|ingWithATrope}}ed with in ''MHA watches Death Battle''. In ''Welcome to the MCU'', Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In ''MHA watches Death Battle'' however, they're a lot less overtly benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}. [[spoiler:Chapter 37 however has Zayden reveal to Kyoka, and the Sisterhood by proxy, that they ''can't'' deliberately hurt Izuku without effectively killing themself ''and'' damning their universe, if they even wanted to in the first place, and had no part in any of the girls feelings for Izuku. Their goal is to ''improve'', not harm, after all, and they can only do so if the world is heading towards a catastrophic fate like the PLF War. After hearing this from Kyoka, Setsuna is initially skeptical of said claim due to Izuku's behavior during "Kratos vs. Spawn" and their own admission it occured because ItAmusedMe, before realizing it was actually a case of being CruelToBeKind. While still a well-intentioned individual, ''MHA watches Death Battle'' has Zayden going about those intentions in a more roundabout, and somewhat harsher, method than in ''Welcome to the MCU''.]]

* CruelToBeKind: {{Discussed|Trope}}. During the events of ''MHA watches Death Battle'', Izuku begins experiencing headaches and demonstrating traits of Kratos and Spawn, Zayden admitting to being the one responsible while claiming they did so because ItAmusedMe. [[spoiler:After they message Kyoka in Chapter 37 and claim they can't harm Izuku, Setsuna is skeptical about said claim when Kyoka relays it to them, since she was present when Zayden made said claim. That is, until she looks at the events that spawned from said incident at a larger scale, as said incident is what let her and Aizawa learn about One For All and caused her and Izuku to become friends, which led to the formation of the Sisterhood so they wouldn't have to fight over Izuku, which then led to Izuku beginning to recognize the feelings he has for them in turn. This causes Setsuna to realize that while Zayden's actions may have caused momentary pain, they were a roundabout means of trying to ''help'' Izuku.]]

* AdaptationalAngstUpgrade: In this continuity, they attracted the unwanted attention of their world's government who wanted to exploit their research and technology to create {{Super Soldier}}s. This leads them to erase all traces of their identities and information from the dimensional viewings on the internet and safeguard their life's work by sending the Death Battle simulations through a random universe (with additional safeguards in case whoever finds it would try to abuse the information), all before going into hiding and intending to claim the box back one day.
* BewareTheSillyOnes: The two of them can be summed up as MadScientist and TheAlcoholic respectively, but they can build world-changing technology that allows them to peer into the multiverse and portal gates that allow things to be transported to other dimensions. Even the box that contained the ''DEATH BATTLE'' videos had many safeguards added by them that prevent even a multidimensional being like ''Zayden'' from direct interference (i.e. hacking) less it self-destructs.

** Justified and downplayed in a realistic way with Bakugou. As both fics show, Izuku secretly still has lingering hatred toward him for his past betrayal and vicious bullying for over a decade, and it's very understandable since Bakugou, aside from peer pressure, was ''never'' forced by others into committing those actions. Never mind the fact that Katsuki was practically family to Izuku and when it came down to it in the past, [[FriendOrIdolDecision Bakugou would choose to stand by for a bunch of strangers who would constantly flatter him and would have no problems throwing him under the bus if he stops being useful to them rather than a kind-hearted boy who would always try to do the right thing for others even in the worst of times.]]

* ButForMeItWasTuesday: Desconstructed and PlayedForDrama. When Katsuki reflects on his former bullying of Izuku, he's disturbed by how "normal" it was to the point that even ''he'' can't recount how much suffering he inflicted on him and it only adds to his GuiltComplex.

* DarkSecret: Bakugou sees his bullying of Izuku in the past like this. A big part of the drama of the viewings is that he's worried that he will be exposed for his past misdeeds given revelations in the students' lives start coming about from them. [[spoiler:Given the likely ForegoneConclusion of his and Midoriya's past being revealed through the viewings, along with how all of their classmates' bullies, he's right to be afraid.]]

* WhatYouAreInTheDark: As he reveals his past to Ibara in ''Welcome to the MCU'', he always knew that deep down, the other teachers and students from both elementary and middle school are nothing more than sycophants and groupies with empty compliments for practically everything he does, yet, he loves the praise so much that he would be do anything to keep the attention on him, even it means bullying others and justifying it in his head as "IDidWhatIHadToDo by putting them in their place" when it was really nothing more than him being an "insecure and petty piece of shit".

* NotSoAboveItAll: As seen in ''Welcome to the MCU! Phase 2!'', it's revealed that not even he was above letting the fame of being the Number 1 Pro Hero of Japan get to his head to the point of losing sight of why he became a hero in the first place. This flaw gets him the crippling scar from One for All in their first battle and is hypocritical by telling Izuku that he can't be a hero without a Quirk when they first met.

* FriendOrIdolDecision: Something that would constantly haunt him after his CharacterDevelopment in both fics to the point of seeing himself as BeyondRedemption; taking the side of what essentially was [[FairWeatherFriend sycophantic and opportunistic students and teachers who would throw him under the bus if he's no longer useful]] over a [[TrueCompanions true, family childhood friend who would stick by his side even in the worst of times]].

** Justified and downplayed in a realistic way with Bakugou. As both fics show, Izuku secretly still has lingering hatred toward him for his past betrayal and vicious bullying for over a decade, and it's very justified since Bakugou, aside from peer pressure, was ''never'' forced by others into committing those actions.

* DarkSecret: Bakugou sees his bullying of Izuku in the past like this. A big part of the drama of the viewings is that he's worried that he will be exposed for his past misdeeds given revelations in the students' lives start coming about from them. [[spoiler:Given the likely ForegoneConclusion of his and Midoriya's past being revealed through the viewings, along with how all of their classmates show distaste for bullies, he's right to be afraid.]]

* FantasticAbleism: Which overlaps with FantasticRacism. He was a victim of this since he was the only Quirkless individual while growing up, leading him to be treated like a useless subhuman by his peers and teachers growing up with any form of bullying by them implicitly ''encouraged''.
* HeroicNeutral: At times in ''MHA Watches Death Battle'', Midoriya would remain neutral in the voting of which fighter will win due to personal reasons or if he had to keep Eri and Kouta from seeing more mature-rated battles.

* ProtagonistTitle: While ''Tales of the Dekuverse'' does focus on multiple characters like the canon manga, it's still clear that Izuku's status is the most important due to his "Main Protagonist" status in the nexus of TheMultiverse, as explained by the machine in ''MHA Watches Death Battle''.

* TreacheryIsASpecialKindOfEvil: A notable case seen in the "Kratos vs Spawn" segment of ''MHA Watches Death Battle''. While Bakugou's BarbaricBully tendencies against Izuku are certainly bad, it's the betrayal that Izuku felt from the torment that really left him with leftover bitter feelings for the explosive teen.

* CruelToBeKind: {{Discussed|Trope}}. During the events of ''MHA watches Death Battle'', Izuku begins experiencing headaches and demonstrating traits of Kratos and Spawn, Zayden admitting to being the only responsible while claiming they did so because ItAmusedMe. [[spoiler:After they message Kyoka in Chapter 37 and claim they can't harm Izuku, Setsuna is skeptical about said claim when Kyoka relays it to them, since she was present when Zayden made said claim. That is, until she looks at the events that spawned from said incident at a larger scale, as said incident is what let her and Aizawa learn about One For All and caused her and Izuku to become friends, which led to the formation of the Sisterhood so they wouldn't have to fight over Izuku, which then led to Izuku beginning to recognize the feelings he has for them in turn. This causes Setsuna to realize that while Zayden's actions may have caused momentary pain, they were a roundabout means of trying to ''help'' Izuku.]]

* AdaptationalJerkass: In ''Welcome to the MCU'', Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In ''MHA watches Death Battle'' however, they're a lot less benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}. However, [[spoiler:it's ultimately {{play|ingWithATrope}}ed with as of Chapter 37. As Zayden reveals to Kyoka, they ''can't'' deliberately hurt Izuku without effectively killing themself ''and'' damning their universe, if they even wanted to in the first place, and had no part in any of the girls feelings for Izuku. Their goal is to ''improve'', not harm, after all, and they can only do so if the world is heading towards a catastrophic fate like the PLF War. After hearing this from Kyoka, Setsuna is initially skeptical of said claim due to Izuku's behavior during "Kratos vs. Spawn", and how Zayden had openly admitted to doing it because ItAmusedMe, making it hard for her to think that was anything ''but'' harm, until she realizes the domino effect that started from said incident, namely the forming of the Sisterhood, her learning about One For All and being in his corner, etc., causing her to realize they were being CruelToBeKind, giving Izuku momentary pain so as to benefit him in the long run.]]

* AdaptationalJerkass: In ''Welcome to the MCU'', Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In ''MHA watches Death Battle'' however, they're a lot less benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}. However, [[spoiler:it's later subverted in chapter 37 as they reveal to Kyoka of their true intentions to improve things and, aside from nudging the "Death Battle" machine to their universe, sending them trinkets, and inducing certain emotions for Izuku, everything else such as Kyoka's romantic feelings for Izuku, the creation of the sisterhood, and their accidental drugging of Izuku is all out of their own volition, and ''not'' Zayden's attempts to play god.]]

* ItAmusedMe: Their main reasoning for emotionally and mentally affecting Izuku in "MHA watches Death Battle", is that they wanted to make things more "entertaining". While that works for an AuthorAvatar, the notion ''terrifies'' the characters, since from their perspective, an interdimensional god decides to emotionally torment Izuku on a ''whim''. [[spoiler:However, chapter 37 plays with this as he means no harm towards Izuku (or that would be a death sentence for him and the world he's currently watching), but to help improve his character.]]

* TimeyWimeyBall: Zayden's perspective of time is very different compared to the inhabitants of the ''My Hero Academia'' world. [[spoiler:As shown in chapter 37 of ''MHA Watches Death Battle'' (published on July 23rd, 2023), Zayden asks Kyoka if ''Website/TwitterX'' is now rebranded as "X" from their point-of-view.]]

* AlternateSelf: In general, Earth-626 (''MHA Watches Death Battle'') and Earth-68421 (''Welcome to the MCU'') are just two of the '''infinite''' versions of the ''My Hero Academia'' setting.
* CharacterExaggeration: Some parts of the characters' personalities are greatly been given more focus such as Izuku's analytical skills and angst over past trauma, Katuski's former bullying and need for atonement, etc.

* BewareTheSillyOnes: The two of them can be summed up as MadScientist and TheAlcoholic respectively, but they can build world-changing technology that allows them to peer into the multiverse and gates that allows things to be transported to other dimensions. Even the box that contained the ''DEATH BATTLE'' videos had many safeguards added by them that prevent even a multidimensional being like ''Zayden'' from direct interference (i.e. hacking).
* SpannerInTheWorks: Their attempts to safeguard the information of multiple worlds allow multidimensional beings like Zayden to intervene and take advantage of the situation to suit their own goals for a chosen world, as Wizard and Boomstick had no intentions of giving the information to anyone specifically and only hoped for the best that if any intelligent lifeform found the box, then they won't abuse it (along with the added safeguards if they do).

* TimeyWimeyBall: Zayden's perspective of time is very different compared to the inhabitants of the ''My Hero Academia'' world. [[spoiler:As shown in chapter 37 of ''MHA Watches Death Battle'', Twitter has already been renamed to "X" from Zayden's point-of-view while it's not the same for the inhabitants due to ComicBookTime.]]

* BewareTheSillyOnes: The two of them can be summed up as MadScientist and TheAlcoholic respectively, but they can build world-changing technology that allows them to peer into the multiverse and gates that allows things to be transported to other dimensions.
* SpannerInTheWorks: Their attempts to safeguard the information of multiple worlds allow multidimensional beings like Zayden to intervene and take advantage of the situation to suit their own goals for a chosen world.

* AdaptationalJerkass: In ''Welcome to the MCU'', Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In ''MHA watches Death Battle'' however, they're a lot less benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}. However, [[spoiler:it's later subverted in chapter 37 as they reveal to Jirou of their true intentions to improve things and, aside from nudging the "Death Battle" machine to their universe, sending them trinkets, and inducing certain emotions for Izuku, everything else such as Jirou's romantic feelings for Izuku, the creation of the sisterhood, and their accidental drugging of Izuku is all out of their own volition, and ''not'' Zayden's attempts to play god.]]

!!Earth-626

* AdaptationalAngstUpgrade: In this version of ''My Hero Academia'', nearly all of the characters suffer from trauma that arises out of domestic issues (bullying, discrimination, tragedy, etc.) that influence their personalities up to the current story. One of the {{Central Theme}}s of the story is the characters learning to move past that and think more heavily about what kind of person they want to be in the future and improve the flaws of Hero Society.

* AlternateSelf: This reality is just one of the '''infinite''' versions of the ''My Hero Academia'' setting.

* MythologyGag: The reality of the cast's earth is designated as "Earth-626" by the viewing device. Quite similar to Mainstream Marvel Comics.

* AdaptationalAngstUpgrade: Izuku's DarkAndTroubledPast gets more [[AdaptationExpansion expanded]] in the fic. His DisappearedDad divorced his mother right after being diagnosed as Quirkless, was physically beaten by Bakugou on a ''near-daily'' basis in addition to verbal insults (leaving many scars hidden away), and is far more prone to HeroicSelfDeprecation whenever his worth as a hero is indirectly called into question.

* TheAtoner: The crux of his character in ''Tales of the Dekuverse'', moreso than in canon, as the weight of his actions towards Izuku in the past and during their first year in U.A. started to sink in after much CharacterDevelopment.

* AdaptationalJerkass: In ''Welcome to the MCU'', Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In ''MHA watches Death Battle'' however, they're a lot less benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}. However, [[spoiler:it's later subverted in chapter 37 as they reveal to Jirou of their true intentions to improve things and, aside from nudging the "Death Battle" machine to their universe, sending them trinkets, and inducing certain emotions for Izuku, everything else such as Jirou's romantic feelings for Izuku, the creation of the sisterhood, and their accidental drugging of Izuku is all out of their own volition and free will, and not their attempts to play god.]]

* ItAmusedMe: Their main reasoning for emotionally and mentally affecting Izuku in "MHA watches Death Battle", is that they wanted to make things more "entertaining". While that works for an AuthorAvatar, the notion ''terrifies'' the characters, since from their perspective, an interdimensional god decides to emotionally torment Izuku on a ''whim''. However, chapter 37 plays with this as he means no harm towards Izuku (or that would be a death sentence for him and the world he's currently watching), but to help improve his character.

* TheChosenOne: Moreso in the fic, where Izuku has the designated "Main Protagonist" status in his home universe and the endless similar ones, along with the cosmic intervention from an unknown celestial and multidimensional deity (Zayden).

* CosmicPlaything: He certainly thinks so of himself, as seen in ''Welcome to the MCU'', and many others soon follow when knowing his DarkAndTroubledPast and discovering his "Main Protagonist" status in "MHA Watches Death Battle".

* KarmaHoudiniWarranty: {{Deconstructed|Trope}}. Make no mistake, while Katsuki is trying to improve himself and atone for his past bullying of Izuku (along with the fact that the staff and student body of Aldera Middle School has the lion's share of enabling and encouraging his worst aspects and shielding him from consequences), he still made the ''choice'' to bully Izuku in nearly all sorts of nasty ways for extremely petty reasons and whatever he told himself to justify it for ''over a decade''. As well as gets away with it thanks to a combination of the systematic discrimination of Quickless people, [[ScrewTheRulesIHaveConnections being shielded in a social manner by opportunistic and bigoted faculty members]], and deceiving more reasonable authority figures, even his victim's mother, [[HonoraryAunt who he admits to having a soft spot for]] [[{{Hypocrite}} despite hating her son at that time]]. The deconstruction of this plays in with one of the {{Driving Question}}s of the fics' ForegoneConclusion of his DarkSecret being revealed, as by this point in time, Katsuki has already made leaps into his CharacterDevelopment for the better (though he's still arrogant and demeaning in a VitriolicBestBuds way); is it '''''fair''''' for him to still be punished in the place of his Pre-CharacterDevelopment self and should the punishment be proportional or disproportionately?

* AdaptationalJerkass: In "Welcome to the MCU!", Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In ''MHA watches Death Battle'' however, they're a lot less benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}. However, it's later subverted in chapter 37 as they reveal to Jirou of their true intentions to improve things and, aside from nudging the "Death Battle" machine to their universe, sending them trinkets, and inducing certain emotions for Izuku, everything else such as Jirou's romantic feelings for Izuku, the creation of the sisterhood, and their accidental drugging of Izuku is all out of their own volition and free will, and not their attempts to play god.

* TimeyWimeyBall: Zayden's perspective of time is very different compared to the inhabitants of the ''My Hero Academia'' world. As shown in chapter 37 of ''MHA Watches Death Battle'', Twitter has already been renamed to "X" from Zayden's point-of-view while it's not the same for the inhabitants due to ComicBookTime.

* AdaptationalJerkass: In "Welcome to the MCU!", Zayden is, at worst, a well-intentioned if enigmatic entity who happens to be a {{troll}}, doing little to interfere with the viewings outside of remotely hacking F.R.I.D.A.Y. to make sure she doesn't accidentally reveal too much too early, and it's stated their overall end goal is to try and steer the timeline in a different direction than that of the PLF War. In "MHA watches Death Battle" however, they're a lot less benevolent, regularly interfering with the viewers in the name of making things "entertaining" even at their expense, and making it no secret they will continue to do so despite any precautions the characters may take to avert it, causing the viewers to see them as a {{jerkass god|s}}.

* ItAmusedMe: Their main reasoning for emotionally and mentally affecting Izuku in "MHA watches Death Battle", is that they wanted to make things more "entertaining". While that works for an AuthorAvatar, the notion ''terrifies'' the characters, since from their perspective, an interdimensional god decides to emotionally torment Izuku on a ''whim''.

* RealityWarper: Zayden is capable of affecting the reality of the ''My Hero Academia'' world and its inhabitants in any way possible.