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There's going to be a lot more red momentarily...note 

She is purity, defiance, righteousness, strength...
They are rage, brutal, without mercy...
But You, You will be worse...
Rip and tear...
Until it is done...
Intro to Remnant Inferis: DOOM

Remnant Inferis: DOOM is a crossover between RWBY and DOOM 2016 written by GamerJay.

Remnant had known no evil greater than the Grimm until they arrived. Nor had they known how far one man who had long since lost his humanity would go to slaughter their kind.

To Rip and tear...

Until it was done.

He continues along his path of unending death and damnation... only now, he doesn't walk it alone.

Warning! Beware of unmarked spoilers for Chapters 1-14.


Remnant Inferis: DOOM provides examples of:

    open/close all folders 
    A - D 
  • Abusive Parent:
    • Marcus Black, if Mercury being reminded of him by watching the Slayer brutalize his enemies is any indication. He later spends some time beating his son to a pulp when they re-encounter.
    • William's (maternal) grandfather was shown to be a complete asshole, having arranged for William and Hunter to be kidnapped and treating his daughter, Aelia, like crap. Thank you, original Doomguy, for beating him to a pulp.
  • Action Dad:
    • The Slayer's father was the original Doomguy. nuff said.
    • He's not a particularly good one, but Marcus is a very effective fighter, saving Team GRVE from certain death with the friggin Unmaker. He even takes on Qrow, the Slayer, Hazel, and Ozpin in the battle at the docks.
  • Adaptational Badass:
    • Jaune starts out more competent and even does well in the Grimm assault on Vale before he unlocks his Aura.
    • Marcus Black never really got to show what he was capable of in canon and was killed by Mercury off-screen. Here, not only does he survive, but he's the leader of the cults on Remnant and is practically the dark equivalent of the Slayer himself.
  • Adaptational Heroism: Since Gretchen is still alive, Hazel never joined Salem and is an ally of Ozpin.
  • Adaptational Villainy:
    • Marcus was already a bad guy, being an remorseless assassin, but being a demon cultist and actual cult leader is a few pay-grades worse than that.
    • Gretchen, Hazel's sister, was a Beacon student and died as one. Here, she's a cultist who turned on her own after a mission gone wrong.
    • Professor Peach is revealed to be responsible for the demonic assault on Beacon and is willingly serving Hell.
  • Adaptation Origin Connection:
    • Cinder's parents were demon worshipers who were killed by the Slaves of Doom. She also would have been killed had Salem not saved her.
    • Marcus Black, Mercury's father, is a demon cult leader and also played a role in turning Team GRVE to the demon's side.
    • The Slaves of Doom are actually former humans whose souls were fragmented by the Brother of Darkness when he wiped them all out, with the pieces warping into what they are now through pure unending hatred.
    • It's also implied that the Slayer has some connection to Ozpin, more specifically Ozma, but what that is isn't quite clear yet.
    • The Silver eyes are revealed to be connected to Argent D'Nur. When Ruby's eyes first awaken, the Slayer's thoughts reveal that she is now the host of "The Silver Light", which is also called "The Seraphim's Gift of Argent".
  • Adult Fear:
    • Qrow has to deal with his nieces befriending a murderous demon killer (whom he makes clear that he doesn't trust at all) and then his nieces get sent to Hell.
    • For the Blazkowicz family, your children being kidnapped is bad enough, but the fact that their grandfather was the one to instigate the kidnapping is another level of this.
    • The Beacon instructors lose students to the demons, either because they were killed and they failed to protect them, or because they became cultists and sold them out.
  • All Deaths Final: Word of God states that when someone dies, they will stay dead. The most you can expect for them coming back is as a Possessed that the characters need to kill a second time.
  • And I Must Scream: After having their souls fractured by the God of Darkness, the humans were trapped in a state of endless suffering, where a single moment of pain seemed infinite and they fell for eternity until it stopped. Their pain and rage would shape the void they were trapped in, and Hell was born from the anger of the Slaves of Doom.
  • Anti-Hero: The Doom Slayer's casual slaughter of his enemies in incredibly visceral ways puts him squarely into this.
  • Anyone Can Die: That's made abundantly clear in Chapter 15 when Fox is viciously offed by Deag Grav, and comes back as a Possessed the following chapter.
  • Apocalypse How: Somewhere between Planetary and Stellar is what will happen if the Slaves of Doom get their way. They've done this with Argent D'Nur, Earth of the first age, and even the Naruto world. Remnant is next.
  • Armor-Piercing Question: Weiss got angry at the Slayer for calling her father a "corporate asshole". He asks if her father isn't one, which Weiss really can't respond to.
  • Armor-Piercing Response: When Weiss derides Ruby for her childish attitude and refusal to grow up, Ruby lashes out, letting loose all the held up anger and trauma she's been hiding since the invasions started. Weiss can't give a clear response, and all she can do is walk off to clear her head.
  • Ascended Extra:
    • Professor Peach, who was only mentioned once in canon, appears in a minor supporting role and is actually the one behind the demonic attacks on Beacon.
    • Downplayed with Marcus Black. He only played a minor role as a part of Mercury's backstory and was already dead by the time we see him. Here, he's a cultist, actually has a speaking role, and plays a key role in Team GRVE's Start of Darkness. This ends up going further as he's revealed to be the leader of the cults on Remnant.
    • Gretchen Rainhart was Hazel's beloved, deceased, little sister. Here, she's alive, well, leader of Team GRVE and a cultist.
  • Asshole Victim:
    • The White Fang members that the Slayer killed in the opening really had a gory death coming.
    • The faunas racists that the cultists sacrifice also deserved their fate.
  • The Assimilator: The demons merge their bodies with the technology of the worlds they conquer. They've done so with UAC tech (thanks in no small part to the UAC's experiments on them) and tried to do so with the Relic of Destruction to open another Hell portal to Remnant.
  • Back-to-Back Badasses: The Slayer and Ruby during "The New World III".
  • Badass Baritone: The Slayer's voice is described as being very deep by those who hear it. Though it's also combined with Guttural Growler and he's also described as sounding very rough as well. This is likely due to him rarely speaking.
  • Benevolent A.I.: VEGA never stops being unfailingly polite even when people remain completely rude to him.
  • The Berserker:
    • The Doom Slayer, naturally. Though he's more of a Tranquil Fury version.
    • Yang gets called out by the Slayer for how this is a bad thing, as it's an easily exploitable weakness.
    • During the demons' attack on Beacon, Jaune gets possessed by a Berserk sphere and tears several Imps and a Hell Knight to pieces with his bare hands.
  • Berserk Button:
    • Anything demon-related always brings the worst out of the Slayer. That and bullying, as Team CRDL can attest.
    • Ozpin became uncharacteristically aggressive when Gretchen brought up his past as Ozma.
  • Better to Die than Be Killed:
    • Ironwood discovered that a team of Third-years at Atlas were in league with Hell and were responsible for opening the Hell portal in Atlas. They willingly turned themselves in, but were discovered dead in their cells the next morning after swallowing their own tongues.
    • After witnessing the horrors of the Physical Hell that she and her team were sent to, Eleanor crosses the Despair Event Horizon and blows her brains out rather than continue fighting and suffering an even worse fate.
  • Beyond the Impossible:
    • Winter saw that the Grimm were very hesitant to fight the Slayer. She didn't even know it was possible for Grimm to feel fear.
    • The Slayer's rage is so immense that it sets off nearly every single Grimm on the continent.
  • BFG: Marcus Black saves Team GRVE with the use of one. Guess what? It was the Unmaker!
  • Big Brother Mentor: The Slayer has this dynamic with Ruby, treating her like a younger sibling (well as close as he can treat someone like a younger sibling) and teaching her how to properly fight.
  • Big Sister Instinct: Yang towards Ruby, as always. Though this can get problematic, as she can get aggressive when people criticize her sister even if the advice they give is genuinely helpful. Such as when the Slayer criticized her fighting prowess - or lack thereof - without Crescent Rose. Though in Yang's defense, how the Slayer criticizes people is less than nice.
  • Black and Grey Morality:
    • The Hero is a violent, murderous, nigh-unkillable jerkass ancient warrior who causes monsters that feed of negativity to swarm him due to his almost infinite rage, but the bad guys are genocidal world-conquering eldritch abominations that possess people, turn them into monsters, ally themselves with the absolute scum of the world, and slaughter the innocent just because they can.
    • The early conflicts that shaped Hell can be summed up as "evil vs. pure, heartless evil", which drags the morality into pitch black vs. vantablack. On one side, we have the first Icon of Sin, who was driven by blood-lust and vengeance, and on the other side was a demon warlord who only sought perverted hedonism in making the universe his plaything. The morality was a complete black hole right there.
  • Black Comedy: The author admits that this is why he decided to make Eleanor's last name the German word for crash, since she crash lands in Hell.
  • Bloodier and Gorier: If all the tropes on this page discussing the gorn don't tip you off, read the opening and you'll see what a brutal, bloody blood bath you're in for.
  • Blood Knight:
    • The Slayer loves killing demons. While fighting them in the catacombs, he couldn't stop smiling at the slaughter he was delivering. However, the sheer glee he has when fighting them comes off as outright sadism to everyone else, which doesn't earn him many allies.
    • Yang loves the thrill of a good fight. Her Corrax entry makes it known that the thrill of a fight is her main driving force.
    • Marcus makes the above two look like outright pacifists by comparison. His vision of a perfect world is one of endless conflict and devastation on a ruined hellscape.
  • Bloodless Carnage: Played straight with the Grimm. A.VER.TED for everything and everyone else that crosses either the Doom Slayer or the demons, to the point a lot of characters walk away covered head to toe in blood.
  • Body Horror: It doesn't reach Junji Ito levels of disturbing, but let's just say that Demonic Possession doesn't do a body any favors. Most Possessed are malformed and disturbing to look at. In Fox's case, his own intestines turned into Combat Tentacles and tried to strangle Coco to death.
  • Break the Cutie: Pick any member of Team RWBY and watch them go through Hell both figuratively and literally.
    • Poor Ruby. Being forced to fight against the Slaves of Doom does not do an idealistic 15 year old's mind any favors. It's gotten to the point where she's started having horrific nightmares about her mother and is suffering a large amount of Sanity Slippage.
    • Blake is forced by the Slayer to confront her past in the White Fang much earlier than in canon, something she is woefully unprepared for. After they get trapped in Hell, she shows shades of becoming a Death Seeker.
    • Yang has to suffer with the fact that the Possessed she kills were once humans and she ends up having to kill a fellow huntress-in-training when she betrays them for the demons.
    • Weiss being mind raped by the Pain Elemental did not do her any favors, as it brought her many family issues to light.
  • Brutal Honesty:
    • The Slayer is incredibly rude, having no issue with how his words affect people's feelings. When Ruby was on the verge of puking from the gruesome ritualistic suicide they saw in a cathedral, the Slayer told her to suck it up. He even told Yang after she killed a Possessed to get over the whole "These Hands Have Killed" stint since they're going to be killing them a lot.
      • He figures out that Blake is a faunas in hiding very easily and calls her out on running from her problems rather than facing them.
      • He's also more than harsh when he mentors Teams RWBY and JNPR when it comes to fighting. He pretty much calls Ruby "hopeless" when she doesn't have her weapon - which is pretty damn accurate - and calls Yang out on having very easily exploitable problems (such as her long hair and her temper) that can easily be rectified.
      • He also calls out RWBY, JNPR, and Glynda for not stopping CRDL's bullying, since doing nothing about it is as bad as being a bully in his eyes.
    • VEGA, despite his pleasant personality, doesn't mince words when it comes to telling everyone how much of a threat the demons are. He even tells the teams that in a full-scale demonic invasion, the chances of all of them getting killed would be 90%.
    • Ozpin's introduction speech to the new students at Beacon actually subverts the brutal honesty it displayed in canon. Since the students were able to fend off the demons, an unseen enemy that caught everyone off guard, Ozpin included, he's more polite with his words since everyone has already proven themselves.
  • Bully Hunter: The Slayer despises bullies and beats Team CRDL to a pulp for their actions in the dining hall. However, how he deals with the problem is so brutal that people are less inclined to like him than the actual bullies. It was so brutal that Weiss honestly didn't see any take-away or lesson to be learned from it; the whole thing just came across as a tall psycho beating people up without receiving any repercussions. Velvet in particular feels that the Slayer is as bad as the demons and was embittered by the fact that she was effectively saved by him and not the teammates that she puts her trust in.
  • Bullying the Dragon: Almost everyone is aware of how dangerous the Slayer is, so it can be pretty baffling that some people still go out of their way to antagonize him. In which case they are either stupid, insane, bloodthirsty or a combination of all three.
    • Team CRDL naturally paid the price for this. And Cardin still plans on getting back at him one day.
    • Qrow ends up doing this. On the one hand, he was heavily doped up on pain medication at the time. On the other, he's proven to be a Functional Addict. Even after the Slayer effortlessly disarms him and almost crushes his wrist, he's still pretty insistent on fighting the guy, if only to stop him from telling Ruby something that Ozpin doesn't want her to know.
    • Cinder and her crew do this to borderline suicidal levels. The Slayer casually tears them down a peg, with Roman and Neo being the only ones smart enough to get the Hell out of there. They all would have been killed had Salem not intervened.
  • Bystander Syndrome: Averted and Discussed. Unlike everybody else the Slayer doesn't sit back and let Velvet get picked on by Cardin and reacts accordingly. Afterwards he says he doesn't like bullies, or people who let them do it, calling out both Teams RWBY and JNPR and driving them, including Glynda, to feeling collective guilt.
  • Chainsaw Good: The Slayer starts off with his chainsaw from DOOM 2016, but once it runs out of fuel, he takes the White Fang Lieutenant's chainsaw for himself.
  • Charles Atlas Superpower: The Slayer's father, the original Doom Guy, fought through the forces of Hell time and again. Unlike his son, he has no blood of Argent D'Nur in him in the slightest.
  • Complaining About Rescues They Don't Like: Weiss really didn't like being treated like a Damsel in Distress when the Slayer had to rescue her from a possessed Huntsman.
  • Contrived Coincidence: Before the Slayer can tell Ruby a few things in regards to their Silver-eyes, Qrow interrupts and challenges him under the pretense that he was putting the moves on his nieces. Considering the subject that the Slayer was about to discuss with Ruby and the fact that Qrow is Ozpin's most devoted follower, he muses that Ozpin is deliberately trying to keep Ruby from learning about her heritage until he wants her to know about it.
  • Crapsack World: Take DOOM, mix it with RWBY, and suddenly Remnant in canon looks like a pleasant vacation home by comparison.
  • Cruel to Be Kind: The Slayer tends to be a massive dick to almost everyone, especially Ruby, but that's because just being around him pretty much guarantees that they'll die young and in a horrific manner given what his day-to-day life is like. Unfortunately for him, Ruby and her friends are pretty damn insistent on staying around him.
  • Cult: They've been making appearances in Remnant and are summoning the Demons to the planet. As recent events show, they've been around and have been planning this for a long time.
  • Curb-Stomp Battle:
    • Most of the Slayer's fights are pretty one-sided. You almost feel sorry for most of his opponents.
      • Calling the Slayer's first encounter with the White Fang and Adam this is being almost too generous toward them. He less fought them, more slaughtered them.
      • Team CRDL's 'fight' against the Slayer. To add salt to the wounds, he wasn't even wearing his Praetor suit.
      • Frequently wrecked Teams RWBY and JNPR while training. Yang called him out on holding back against them, with Weiss asking if she's borderline suicidal in wanting him to go all out.
      • In one of said sparring matches, JNPR lasted only a minute and forty seven seconds. This is considered massive improvement, the last time they only lasted twenty seconds.
    • Team GRVE fought both Weiss and Ruby. Said first years were completely outclassed by them.
    • In Hell, Team RWBY gets utterly thrashed by the Marauder.
  • Darker and Edgier: It's Doom mixed in with RWBY. Were you expecting a pleasant experience? If you were, turn around to avoid the gory mutilation, cult sacrifices, traumatizing nightmares, and crushing of childish innocence.
  • Deal with the Devil: Part of how Hell portals are opening on Remnant is due to cultists making these. As VEGA points out and as Olivia Pierce's past dealings show, Hell will betray their collaborators without a second thought once their use wears out.
    Doom Slayer: Hell will offer you anythin' to get its way, anythin' you've ever wanted. An' you'll want to accept it.
  • Deconstructed Character Archetype:
    • A lot of the Slayer's various character traits end up getting picked apart across the story, but one of the biggest is that he deconstructs the idea of a huntsman. Believe it or not, he's the Ideal Hero for Huntsman. As with his martial combat prowess, strength and determination, he's essentially everything that an aspiring Huntsman or Huntress should strive to be like. Even what he does on a day-to-day basis - killing demons - really isn't too different from the Huntsman profession of killing Grimm. The fact that he's also a descendant of a different variation of the Silver-eyed warriors adds to this, as they were the greatest warriors of Remnant. However, his quest to destroy said demons has reduced him to a violent, genocidal killing machine. He's basically what any Huntsman or Huntress would turn into if their occupation was literally the only thing they ever did for their entire lives. The fact that he never ages and has been doing this for thousands of years doesn't really help.
    • Ruby's Wide-Eyed Idealist mindset gets torn apart throughout the story, showing the problems someone as idealistic and upbeat as Ruby would have when forced to wake up to the reality of a Crapsack World that actively wants to kill her and tear Remnant apart on a level that even the Grimm would balk at. The end result is that not only is she forced to grow up faster than she can keep up with, but also starts losing it and becomes more bloodthirsty and crude.
  • Deconstructed Trope:
    • The Grimm's nature as The Soulless gets this. Humans have souls, so they can at least fight off possession from demons for some time. Even the natives of Remnant, who have Aura and as such are more vulnerable to Argent energy, can resist possession provided that they have a strong enough willpower. The Grimm lack this, making them pretty much free real estate for any demon that wanders near them.
    • The Battle Aura that normally protects Huntsman and Huntresses is a poor match against Argent energy and demons. As the Slayer points out, the body normally protects the soul, but since the soul is now outside the body serving as a shield, it makes them all the more vulnerable.
    • The Grimm's No Body Left Behind aspect gets put into perspective when compared to killing demons. Where as the Grimm fade away after death, demons make a large mess of the place, and a lot of them were once human. Killing them is far more traumatizing than killing Grimm, and the girls of RWBY react appropriately.
  • Deconstruction Crossover: Many aspects of both series are given a deep look over and torn apart, showing how bad things would be for Remnant if the demons invaded, how few allies the Slayer's personality would net him, and how traumatic these circumstances would be for Teams RWBY and JNPR.
  • Designated Victim: Since Ruby is a Silver-eyed warrior, much like the Slayer is, yet is more inexperienced, she tends to be a target for the demons, as she would be the biggest threat to them if she either realizes her potential or produces more of her kind.
  • Destructive Savior: When the Slayer fights, both his enemies, and the surrounding environment, tend to get utterly destroyed. When Ruby arrived to a town where he fought the Grimm, the civilians complained that he left them to clean up his mess.
  • The Dreaded: The Slayer horrifies almost anyone he fights, which is fitting since even Hell is terrified of this guy. To really put this into perspective; Grimm, creatures who feed off of fear and negative emotions, are batshit terrified of the Slayer. Lionheart considers him to be just as terrifying as Salem. The only reason he considers Salem just a tad scarier is because she's actively keeping tabs on him and can kill him at any time. After their fist encounter and peering through his head, both Cinder and Salem want to be as far away from the Slayer as inhumanly possible.
    • It's implied through the Heresiarch that Team GRVE meets that even the Brother gods are terrified of the Doom Slayer. Though there is nothing concrete enough to be certain about this.
    • This ends up also working to Salem's detriment. After the Slayer kicks the shit out of Cinder and her team, she becomes terrified of him, and that fear also leads to her defying Salem. Cinder fears the Slayer more than she does Salem, making her harder to control.
    • By the events of chapter 22, Ironwood has an entire alarm system centered around the Slayer.
  • Dysfunction Junction: Hell's invasion has left nearly everyone with their share of physical, mental, and emotional scars. Ruby and the Slayer have the most issues as a result of the constant battles with demons.

    E - L 
  • Eating the Eye Candy: Yang, being who she is, really enjoys the sight of the Slayer without his chest armor.
  • Equal-Opportunity Evil: There are numerous cults out there that detest racism and treat the Faunas as equals.
  • Establishing Series Moment: Want to know what you're in for? Look at the opening of the first chapter and watch the Slayer brutally mutilate the White Fang. He outright punched the jaw clean off of one of them! Yup, you're in for one hell of a bloodbath.
  • Even Evil Has Standards:
    • Marcus is a psychotic demon cultist, but he has a distaste for racism and treats the faunas he works with equally.
    • The demon warlord that the first Icon of Sin fought and killed to consolidate his power was so horrifically despicable that even he was disgusted by him. It is extremely telling that said warlord was so monstrous that even a Satanic Archetype of the highest order was repulsed by him.
  • Eviler Than Thou: Qrow remarks that the demons are even worse than anything Salem could cook up. Whereas he called Salem's monsters "fear" in canon, he describes Hell as "pure evil".
  • Fan Disservice: A naked Summer Rose would be attractive... buuut at the time she had empty eye-sockets with blood pouring out, a torn open womb, and was trying to drown her daughter in blood and rot. Thank God it was just a dream.
  • Fantastic Racism:
    • Racism against Faunas is still very much present. Vice versa with the White Fang against humans.
    • The Slayer and his father apparently went through this during his childhood due to having Earth ancestry.
    • The demons hate humans, but they especially hate silver-eyed warriors, referring to them as "heathens".
  • Feel No Pain: Gretchen seems to have the same semblance as her brother, as she can't feel pain.
  • Fight Magnet: The Slayer, being the unending black hole of rage and vengeance that he is, causes Grimm to swarm him like moths to a flame.
  • Fire Forged Friendship: The Slayer starts to acknowledge Ruby and her friends as comrades after fighting a series of battles against Grimm and demons alongside them.
  • For Want of a Nail:
    • The demonic assault on Beacon causes the Emerald Forest initiation to not happen, as the surviving students have already proved themselves.
    • Gretchen still being alive means that Hazel never joined Salem and is aligned with Ozpin.
  • The Friend Nobody Likes: Aside from Ruby and Yang, everyone else has a hard time liking the Slayer. His aggressive attitude doesn't help things in the slightest.
  • From Bad to Worse: After the Slayer wakes up and cults start summoning demons, things go seriously downhill for almost all of Remnant. Grimm start becoming far more erratic and aggressive thanks to feeding off the Doom Slayer's and the demons' hatred for each other and the assault of Vale happens far earlier than it did in canon, with Cinder's manipulations being completely unneeded to make it happen.
  • Full-Frontal Assault: The Doom Slayer's first actions upon reawakening was to slaughter some members of the White Fang while completely naked.
  • Fusion Fic: It gives the appearance of a crossover between Doom and RWBY at first, but as it goes on, it reveals itself to be this, as Hell, the Slayer, and Argent D'Nur have more ties to Remnant than most realize. It also blends in Wolfenstein into the backstory since the Slayer's paternal ancestor was B.J. Blazkowicz himself, so the events of those games happened in the background. In addition, Remnant is one of the few realms left that Hell has yet to swallow up alongside the Earth of the current age, and all of demon-kind originates from the original genocide of the pre-history Remnant's humanity caused by the Brother of Darkness.
  • The Glomp: Once Team RWBY finally escapes from Hell, Ruby throws herself at Yang and then at the Slayer, happy that they all survived.
  • Good Is Not Soft: The Slayer is one of the heroes and works to destroy the Grimm and demons, but he is NOT a Nice Guy and his methods are so visceral and graphic that most of his allies are either weary of him or see him as just as much of a threat as Hell itself.
  • Gorn: It's DOOM! This story absolutely revels in the copious blood and gore the series is known for.
  • Great Offscreen War: There are a number of battles that happened in the background history of the world. The war between Argent D'Nur and the Slaves of Doom as well as the Slayer's one man crusade against them following his home-world's destruction are among them, but there's also the battles the Slayer's ancestors, the Blazkowicz family, fought against the Nazis.
  • Groin Attack: The White Fang Lieutenant gets this from the Slayer with a broken sword. Readers will Share the Male Pain.
  • Happy Ending Override: After killing the Icon of Sin at the end of Doom II: Hell On Earth the original Doomguy ends up on Argent D'Nur. However, he manages to gain favor with the Night Sentinels, falls in love and marries a D'Nurian woman, raises a family with her and seemed happy in spite of not being able to return to Earth. It all falls apart when Argent D'Nur is conquered by Hell and his eldest son William becomes the Doom Slayer, leaving his own fate currently unknown.
  • Hell on Earth: This will be the ultimate fate of Remnant if the Slaves of Doom succeed. Just like Earth and Argent D'Nur.
  • Heroic Build: Fighting Hell itself for untold lifetimes makes for a major workout regimen. As a result, the Slayer is ripped.
  • Heroic Lineage: The Slayer is the son of the original Doomguy. And his great-great-grandfather, you may ask? Why everyone's favorite Nazi killer: B.J. Blazkowicz.
  • Horrifying the Horror:
    • The Creatures of Grimm are very hesitant to fight the Slayer, showing that even animalistic abominations that are driven by fear are terrified of him. Winter didn't even believe this to be possible.
    • Salem is Ozpin's immortal arch-enemy and controls the animalistic abominations that roam the world. One look into the Slayer's mind, and she was terrified beyond words.
  • Human Sacrifice: The cultists who worship Hell frequently practice this. They don't really care what their victims have done or who they were so long as they have sacrifices.
  • Hypocrisy Nod: The Slayer really hates the fact that Ozpin deliberately keeps important secrets from his students and peers. When the Slayer decides not to inform Ruby about everything regarding the Silver-eyes all at once, he muses that he really isn't that different from Ozpin in that regard.
  • Hypocrite: During their fight in Chapter 2, Adam Taurus calls the Slayer a murderer. Adam Taurus, homicidal maniac who gleefully kills humans left and right out of his desire for revenge for the abuses of the Faunus race, calls the Slayer a murderer.
  • Idiot Ball: Remnant's Council seems to be clinging onto this thing for dear life. They refuse to send reinforcements to the Academies still under siege from demons, demand that occult artifacts be brought straight to them when getting rid of them entirely will do a better job at mitigating Hell portals, and on top of that, still plan on having the Vytal Festival when cancelling the event and pouring their focus into their demon invasion problem would be far more productive. It's telling that Ozpin and the Slayer often get better results by ignoring them.
  • Insane Equals Violent: The Slayer isn't insane, but he's so violent in his actions that he comes across as this to almost everyone he meets.
  • Inspector Javert: Winter is highly against the Slayer having free run of where he is due to him being a massive threat as well as a prisoner of Atlas. She only puts this aside because she has no choice. Ironwood also counts, though he's less publicly vocal about it
  • In Spite of a Nail: Despite the different circumstances in which the characters meet as well as the demon invasion of Beacon, the teams all end up the exact same way as they did in canon. The Slayer notes that the teams turned out the way they did due to Ozpin rigging them that way.
  • I Owe You My Life: While Weiss still didn't like the Slayer at the time, she was still grateful to him for saving her during the demon assault on Vale and tried to prevent her sister from taking him back into Atlas custody. She mainly starts having second thoughts on him when he kills one of Torchwick's mooks. Ironically, Winter defends his actions (sort of) by pointing out that in their line of work, such actions are a necessity.
  • "It" Is Dehumanizing:
    • Ironwood insistently refers to VEGA as "it", never "he". VEGA doesn't mind though.
    • The Slayer's grandfather only ever calls him and his father "Terran" due to him being from Earth.
  • It's All About Me:
    • Olivia Pierce only cared for achieving God-hood and her followers were little more than stepping-stones to get that power. In her farewell to them, she outright told them this in what is perhaps the most backhanded "thank you" ever.
    • Jacques Schnee. As Weiss's nightmare shows, she subconsciously believes that her father would be all too willing to sell out his own kingdom to gain a foot-hold in Hell's conquest.
  • It's All My Fault: Thanks to his status as The Jinx because of his semblance, Qrow blames himself for Ruby and Yang getting trapped in Hell, much like how he blames himself for Summer's death.
  • Jerkass Has a Point: The Slayer may be crude, but he is right in telling Ruby and Yang to get over killing the Possessed. The Battle against Hell, as well as war in general, is no place for those who balk at the sight of blood.
    • When he was training Teams RWBY and JNPR and told Yang to do her hair up and she objects, he pulls her hair to prove a point. Long hair is very easy to grab and exploit as a weakness in a fight.
  • Jerkass with a Heart of Gold: The Slayer's got his soft spots, but he so rarely shows them that the only people who enjoy his company are those that have gotten to know him, which amounts to Ruby and Yang at this point. Everyone else either fears him, tolerates him, or hates him. While he is growing nicer, it's only around his morality pets that his soft spots show themselves.
  • Kick the Morality Pet: While Ruby is one of the few people the Slayer is nice to, he can be downright mean to her every now and then. The most frequent being how he lambastes her aspirations of being a Huntress and tells her to give up. He's doing so to prevent her from living a life of death and misery (or turn out like him), but it's still pretty cruel.
  • Knee Capping: The Slayer shoots Adam in the knee with his energy pistol. Hell, the chapter where this happens is literally named Kneecapped With A High-Powered Energy Pistol.
  • Kryptonite Factor: Argent energy and Aura do not mix at all. When Ruby first came into contact with it at the Cathedral of Marysville, she immediately started feeling boundless agony. Blake's thought process describes it as if someone managed to burn her very soul. The Slayer points out that a part of the reason is due to Aura being a defense shield for people on Remnant. A soul needs to be protected by the body, not the other way around.
  • The Legions of Hell: Following their failed invasion of Mars, the Slaves of Doom now have their sights on Remnant. And it's up to the Slayer and Team RWBY to stop them.
  • Let's You and Him Fight: To settle their differences, Ruby proposes a duel with Weiss, which she accepts. It gets interrupted before it begins by Team GRVE, unfortunately.
  • Locked Out of the Loop: Ozpin keeps his allies out of the loop in regards to his past as well as other knowledge that he doesn't want them to know about. He doesn't tell the Slayer anything in regards to the Relics due to certainty that he would destroy them to keep their power out of the hands of Hell and Salem. Given that both he and VEGA suggest killing the Maidens when he learns that Salem desires their power, it's not completely unfounded. Ozpin also tries to keep Ruby from learning anything about her silver-eyes, and has Qrow prevent the Slayer from telling her anything. This aspect frustrates the Slayer a lot.
  • Love Is a Weakness: William's maternal grandfather despised the fact that his parents were raising him in a way that he was nurtured and loved, as he found those concepts to be weaknesses that Night Sentinels should never have.

    M - Q 
  • Manipulative Bastard: The Slayer thinks of Ozpin as one after he intentionally rigged the teams so that they would end up in a specific way.
  • The Mentor: The Slayer helps teach Teams RWBY and JNPR how to effectively fight so they don't die in a demonic assault.
  • Mistaken for Racist: The Slayer doesn't have anything against faunas - or beasts as he calls them - just the ones who try to kill him. He tends to get mistaken by White Fang members (and Blake at first) for a racist and some of his insults toward Adam motivated him to kill his opponent more than he normally would be.
  • Mook Horror Show: If you are 1.) a White Fang member, 2.) a Schnee security officer, or 3.) a demon or Possessed, then you will be disemboweled in such gruesome ways that you will question your life choices.
  • Morality Chain: Discussed. Gretchen tells Ozpin that he cannot kill her because that would guarantee that her brother, Hazel, would do everything in his power to completely destroy him. Given what we see in canon regarding Hazel, she's not bluffing in the slightest.
  • Morality Pet: While the Slayer is in-no-way evil, he's very confrontational and hard to approach. Ruby and Yang are among the few people that can actually get him to be something resembling polite.
  • Mythology Gag:
    • Marcus Black's title as the "Heresiarch" was originally a boss in Hexen.
    • The Unmaker that Marcus Black uses comes from Doom 64.
    • Yang punching clean through Eva Pioux's chest and shouting "Dynamite!" was originally done by the Doom Marine in the Doom comics to an enemy demon.
    • Cardin named his mace "The Great Communicator", which was the nickname for Doomguy's chainsaw. Ironically, the Slayer found this name to be incredibly dumb.
    • In Chapter 12, the Slayer gives the tip "shoot em' till' they die", which is a spin on GamePro magazine's infamous protip "To defeat the Cyberdemon, shoot at it until it dies."
    • Also from the Doom Comic: In Chapter 13, Yang expected William to openly declare "Guns are for wusses."
    • Also, Yang says "You are huge! That means you have huge guts" in Chapter 23.
    • The Slayer's childhood friend back on Argent D'Nur was a rabbit Faunas named Perenna, a nod to how one of Doomguy's motivations for slaughtering Hell was to avenge his pet rabbit, Daisy.
  • Naked on Revival: Since the Atlesian scientists took his armor to study, The Doom Slayer first awakens in the buff.
  • Named by the Adaptation:
    • The Slayer's full name is William Joseph "B.J." Blazkowicz III.
    • The White Fang Lieutenant is named Marlowe.
  • Names To Run Away From Very Fast: Team GRVE can't mean anything good. Turns out they are not.
  • Narcissist: Not really, but Winter assumes the Slayer to be one since he has action figures of himself.
  • Never Hurt an Innocent: The Slayer never hurts innocent people and will brutally slaughter anyone who does. He would rather let himself be captured by Atlas rather than risk killing their soldiers that have nothing to do with his revenge.
  • Nightmare Sequence: Fighting Hell starts to take its toll on Team RWBY, and each of them start having horrific nightmares.
    • Ruby has a disturbing one involving a mutilated, deformed version of her mother trying to drown her in a pit of blood and gore; condemning her for following in the Huntress' lifestyle.
    • Weiss dreams that she loses her fight against the Gigas first seen in the White trailer, her father Jacques sells Atlas out to Hell and she's dragged away by two Imps wearing SDC vests.
    • Blake has nightmares of the Slayer killing off all of the White Fang, including her father and Ilia.
    • Cinder of all people has one, remembering her parents summoning Demons that proceeded to kill them and all the other cultists, with her being the only survivor of the attack due to Salem being the one who saved her.
    • Yang has one where an Imp's arm thrusts out of the pancake batter Summer was making and kills her in front of the child Yang. This is comparatively tame compared to the above nightmares.
  • No-Nonsense Nemesis:
    • The Slaves of Doom are remarkably intelligent and don't take their opponents lightly. When they begin their invasion of Remnant, they attack all the Huntsman academies at once, with Shade Academy still fighting against them. Ozpin wonders if they were trying to destroy Remnant's main lines of defense, or test them.
    • The demons treat silver-eyed warriors, such as William and Ruby, with far more caution and ferocity than they would anyone else. Upon seeing Ruby's silver eyes, the first thing they tried to do was not only rip out her eyes, but also tear out her womb so she couldn't procreate any more of their enemies.
  • Not Distracted by the Sexy: While the Slayer acknowledges that Yang is attractive, he's completely unperturbed by her flirtatious nature. This actually surprises Yang.
  • Nothing Is the Same Anymore: The demon invasion forever changes Remnant, as survival becomes more difficult and cults worm there way into the infrastructure of the kingdoms.
    • Fox's death changes up the story, as it now operates on Anyone Can Die.
    • And following Marcus's cult attack on the Slayer, Ozpin and his group, as well as the recent demonic attack on Beacon, Ironwood is now colluding with Roman and Neo to better combat Hell, Cinder's plans have been derailed and she and her associates have fled Vale, Adam has been reduced to being the cultists' messenger boy, and Team RWBY and the Slayer are trapped in Hell.
  • Obstructive Bureaucrat: The Vale Council are better at stopping the heroes than they are helping them. The Slayer and Ozpin have none of it.
  • Odd Friendship: Ruby, a hyperactive scythe-wielding weapon-fanatic, becomes best friends with the Doom Slayer, a near silent, rage-filled demon killer.
  • Oh, Crap!: The general reaction to the Slayer and Hell.
    • Jaune panics when the Slayer starts suspecting the truth about how he got into Beacon.
    • Qrow has this reaction when Ozpin responds to his question of if he can take him with silence, since no one on their side can truly stop the Slayer should he begin to oppose them for whatever reason.
    • Ruby and Weiss when they are attacked by Team GRVE.
    • Ozpin has this reaction when Gretchen reveals that she knows about his past as Ozma.
    • ALL of Cinder's associates have reaction this to the Slayer once he starts annihilating them.
    • Ozpin has this when he learns that the demons have stolen the Shade Academy relic.
  • Oh My Gods!: The Brother gods are worshipped on Remnant, and many people refer to them in this manner when shit goes sideways.
  • One-Man Army: Even by the standards of Remnant, the Slayer is an army unto himself. The only reason he got captured by Ironwood in the first place is because he allowed himself to get taken. However, being so unnaturally powerful, and without Aura or other Remnant conventions to boot, causes people to be far more scared and distrustful of him. Most of Ozpin's inner circle view the Slayer as an outright threat.
  • Pay Evil unto Evil: The Slayer is by no means evil, but how he kills his enemies is NOT pleasant in the slightest. However, each and every single one of them deserve what's coming to them.
  • Powered by a Forsaken Child: Aura is generated by a person's soul. The demons take full, disturbing advantage of this fact by using them to open portals. And they intend to do this to the Maidens if they ever manage to get their hands on them.
  • Power Is Sexy: The Demons are under the assumption that Huntresses are attracted to a man's bloodthirsty strength as a measure of virility, and they fear that any one of the women would willingly "spread their legs" for the Doom Slayer once they see him fight. As such they want to either kill the Slayer or conquer Remnant before the Doom Slayer finally notices the attractive women around him and continues his Silver-Eyed lineage against Hell.
  • Properly Paranoid: Ironwood, Qrow, Weiss and Winter don't really trust the Slayer due to his blood-lust, violent nature, and willingness to do anything to destroy the Slaves of Doom. Qrow in particular views him as more of a threat because of the latter reason, as it means that if killing them would lead to Hell's destruction, then he's certain the Slayer would do it without question. Ozpin relies on the Slayer since he's the most effective when it comes to fighting Hell, but actively keeps him out of the loop in regards to certain things like the Relics. This is because he's certain that the Slayer will do everything he can to destroy them if it means denying Hell the power they possess.
  • Pyrrhic Victory:
    • Ozpin tells the Slayer that if he can land one hit on him, he can leave Beacon grounds and do whatever he wants. While Ozpin stalemates the Slayer, he takes several hits, so he lost his bet and has to give the Slayer free reign over where he goes.
    • The first victory for the Night Sentinels during the defense of Argent D'Nur's capital was described as this.
  • The Quisling: Team GRVE has been in league with Hell for a while.

    R - Y 
  • Rapunzel Hair: The Slayer shows Yang why this is a very bad thing to have in a fight. Having long hair is just an easily exploitable weakness as it can be pulled around without trouble. Yang, liking her hair the way it is, has to get beaten up by the Slayer for her to admit he's right.
  • Reality Ensues:
    • What happens when beings who can take over bodies and overtake souls try to take over The Soulless? They easily gain a new body with zero resistance, alongside a boatload of new abilities specific to that body.
    • The Hunters and Huntresses-In-Training were used to fighting Grimm and when they die they simply fade away. Instead they fight demons from Hell that are absolutely ferocious in combat and every engagement always ends with a bloody mess afterward. Cue all the instances of Break the Cutie.
    • This is also part of the reason why VEGA cannot connect to anything beyond the wireless gadgets in Vale. Anything involving internal systems and machinery would require an entire icecap to use as a cooling system, which they don't exactly have access to at the moment nor do they have time to set up.
    • The Slayer, as a veteran of countless battles, is easily able to tell what sets apart an expert from a novice. He was able to deduce that Jaune really hasn't been fighting very long due to a lack of callus on his hands.
    • The Slayer's personality was something that he could easily get away with back on Mars since he was all alone in his quest to stop the Slaves of Doom with his only help being Samuel Hayden and VEGA. Here, he has actual people that he needs to rely on, and his default attitude makes people distrustful and intolerant of him. The only reason Ozpin's staff puts up with him at all is because he's Remnant's best chance at stopping Hell and because they really can't do anything to stop him anyway.
    • The Atlesian soldiers and scientists in Chapter 24 said that even a powerful One-Man Army like the Slayer can't just beat the entire army of Atlas, including one million soldiers, robots and Airships, with low ammunition and four unconscious girls that he can't risk being hurt. Also, he doesn't want to hurt innocent people that are just doing their jobs.
    • Even if his Praetor Suit is super resistant, along with having eons of experience and being an expert in all types of combat, the Slayer isn't invincible. Adam's semblance allows him to cut parts of the armor. Even without deep cuts, this still put fragments of hell forged steel in his bloodstream and results in an infection, it was only because of his superhuman resistance that he only collapsed after a few days.
    • Also, even if the armor protect his body, he can still be thrown away or knocked down by strong attacks, and the Marauder is so strong that even without penetrate, his punches still affect the Slayer, almost defeating him. Cinder's magical fire is also hot enough to affect him in his armor.
    • A super intelligent AI like VEGA can't track Deag Grav or Marcus Black alone. He needs resources and information that only the Kingdoms can provide. After he's locked in Hell, Ironwood had to use Roman's underworld contacts to try and track Marcus.
  • Really 700 Years Old:
    • The Slayer has been fighting against the forces of Hell for thousands of years. He looks more like a young adult (about 21 to 22 years old) than an old grandpa. This shocks him when he looks at his reflection in a mirror for the first time in years.
    • Ozpin and Salem both qualify as well due to being over a thousand years old.
  • Redshirt Army: The SDC security forces are about as useful against Hell as a staple-gun against a giant robot.
  • Related in the Adaptation: It's left ambiguous whether the Slayer is the original Doom Marine or some long-term descendant of him in the game, but here, they're father and son.
  • Revenge: The Slayer's primary motivation for fighting the forces of Hell.
  • Satellite Character:
    • Cardin's teammates don't really have any personality or significance outside of being his cronies.
    • Gretchen's teammates are cultists like her, but lack any depth beyond being her teammates.
  • Shout-Out:
    • The chapter "The New World III: Corpsegrinder" refers to George "Corpsegrinder" Fisher, who was the lead singer of the band Cannibal Corpse.
    • Both the titles from the chapters "This Pain of Train" and "Is Finally Boarding" are lyrics from the song 'Clandestine Ways' by Cattle Decapitation.
    • The phrase "Raining blood from a lacerated sky" found in "At Doom's Gate II: The Inferno Beacon" comes from the Slayer song, "Raining Blood".
    • In "Inferno Road I: Suffer", Yang unleashes a flurry of punches while shouting "ORAORAORAORAORAORAORA"! Yes, this is a JoJo reference. Though it was later removed due to the author finding it out of place.
    • While in Hell, Ruby stumbles on a headband with a leaf symbol on it.
  • And Show It to You: Attempted. Team GRVE were told by the demons to "cut out [Ruby's] eyes and womb". They decide to tear out her womb first so that she can see it happen. Thankfully, the Beacon instructors arrive in time before they can do anything.
  • Sick and Wrong: How many characters react to the demons' atrocities, and at the sight of the demons themselves. Yang is particularly disgusted by the sight of a Mancubus.
  • Silent Snarker: While the Slayer is more chatty this time around, he can still be remarkably sarcastic without opening his mouth, such as when he gave Weiss a flick on the nose.
  • Sir Swears-a-Lot: The Slayer doesn't talk much, but when he does, there are a decent number of curses in his dialogue. His inner thoughts also tend to be peppered with foul language.
  • Sleep Cute: A strictly platonic example. After suffering through her aforementioned Nightmare Sequence, Ruby decides to go sleep in the same room as the Slayer, and seeing the way he sleeps sitting on the floor against the wall she joins him and nods off against his shoulder. He doesn't try to stop her, and it goes to show how much she trusts him.
  • Slut-Shaming: Many demons insult Salem in this way, calling her "Whore-Queen of the Grimm" and "Slut-Witch of Black". They also refer to team RWBY as the Slayer's "heathen whores".
  • Smug Super: Yang, despite being a Nice Girl, is pretty prideful in her fighting prowess and gets pissed off when people insult her in this regard. She got pretty miffed when VEGA said that that she and the other would die 9 times out of 10 in a full scale demonic invasion. She also refused to listen to a lot of the Slayer's advise until after he wrecked her shit, where she then acknowledged that he had a point.
  • The Soulless: The Grimm do not have Souls, like in canon. However, this leaves them open to become Possessed by Hell. The Slayer basically describes them as free real estate for the forces of Hell.
  • Spared by the Adaptation: Hazel's younger sister, who died before the start of the series in canon, is alive here and is also a cultist serving the Slaves of Doom.
  • The Stations of the Canon: While certain canonical events for RWBY happen (such as Ruby's fight with Weiss regarding the team's leadership), it mostly averts this, as the fic puts a unique spin on the show with DOOM lore added in, with the breach and Grimm assault of Vale and the battle at the docks having completely different circumstances to them. As of chapter 20, with team RWBY and the Slayer sent to Hell, canon has been completely thrown out the window.
  • Stepford Smiler: Ruby is doing everything she can to remain positive despite the traumatizing circumstances fighting Hell has put her through. She does this well enough that people get disturbed with how someone can remain so childish and innocent while fighting literal demons. Of course, the mask slips sometimes.
  • Stress Vomit: A number of Huntsmen and Huntresses could really benefit from some barf bags given how often it happens in the story.
  • Suddenly Voiced: The Slayer actually talks here when he was originally silent in the past. This was due to a vow of silence he took to never say a word until all of the Slaves of Doom where completely destroyed. He decides to go back on it so he can smack talk Adam.
  • Summoning Ritual: Cultists use these to open Hell portals that bring the Slaves of Doom to Remnant.
  • Take Our Word for It:
    • We have no idea what the fight between Ozpin and the Slayer was like other than it ended with them both battered, bruised, and bandaged. Doubles as an Offscreen Moment of Awesome since this means that Ozpin is the first person to fight the Slayer to a standstill.
    • We don't get to see what was in the Slayer's head that horrified Salem so much, but it must have been pretty terrifying.
  • Talking Is a Free Action: Defied. This is pretty idiotic to do, and the Slayer wholeheartedly takes advantage of when his enemies run their mouths to kick their asses. Just ask Cardin and Cinder, since they got headbutted and shotgun-blasted in the face respectively for their troubles. Pyrrha makes it a point to defy this as well when Peach was talking about killing Amber.
  • There Are No Therapists: Not in Hell there ain't! However, Yang and the Slayer's conversation after fighting the Marauder indicates that they plan on getting Ruby to a therapist when they get the opportunity.
  • These Hands Have Killed:
    • Ruby has this reaction after the fight in Marysville, knowing that the Possessed that she killed were once humans.
    • Yang also has this reaction when she kills a Possessed. Happens to her again when she kills Eva Pioux of Team GRVE, a fellow Huntress-In-Training.
  • Took a Level in Badass: Invoked. The Doom Slayer actively trains the students so that they will better be able to survive a demonic invasion or assault without him. After they survive the recent one lead by Professor Peach and succeed in protecting Amber, VEGA states that they've become capable enough to survive a demonic assault provided that they remain under the leadership of Jaune and Coco.
  • Tragic Keepsake: The Slayer does have one thing that survived Argent D'Nur's destruction that he's kept with himself for millennia: The Blazkowicz family engagement ring.
  • Troubling Unchildlike Behavior: Subverted. From the Slayer's perspective, Ruby going back to her chipper self after slaughtering demons and being casual about tearing Grimm to shreds, not to mention her obsession with weapons, comes across as unnerving for a 15 year old girl. Really, Ruby's more of a Stepford Smiler who's trying against all odds to remain positive. The whole killing Grimm with a smile part is just naturally a part of a Huntress' lifestyle.
  • Underestimating Badassery:
    • Subverted. Ruby was under the assumption that the Slayer told her to go home and stop being a Huntress was because he didn't think she was much of a fighter. During one of her nightmares, her mother explains that his reason isn't because he thinks she's not cut out for battle, but because he doesn't want her to live the kind of life he does; an unending pit of death and damnation.
    • The students were under the impression that a majority of the Slayer's abilities came from his Praetor Suit, and that he'd be a sitting duck without it due to his inability to produce Aura. This notion is almost immediately dispelled after he casually dismantles Team CRDL without a shred of effort or his suit. If anything, the collective of Beacon's student body is more terrified of him than they already were.
      • Speaking of, Team CRDL did this in regards to the Slayer, to the point where they enter Too Dumb to Live territory. They're still squarely in this territory for the record.
    • Subverted. Qrow tries to pick a fight with the Slayer despite knowing full well what the Slayer is capable of, but he was mostly trying to keep him from telling Ruby something that Ozpin didn't want her to learn at that point.
    • Cinder and her associates all greatly underestimated him. They payed dearly for this.
    • Salem thought that she could easily manipulate the Slayer's mind. Not only was she wrong, but what she saw in his head was so horrific that even she's terrified of him now.
  • The Unfettered: The Slayer is absolutely unflinching in his drive to slaughter the Slaves of Doom and nothing, repeat: NOTHING, will stop him. Ozpin notes that he's also got at least a few shades of The Fettered in him; he has nothing to lose, yet understands what everyone else stands to lose.
  • Unfortunate Names: Ruby calls the Slayer B.J. for short. It takes all of three seconds for it to register what that means. Ruby reacts appropriately when she puts two and two together.
  • Violence Is Disturbing: Not really, but since teams RWBY and JNPR aren't constantly soaking in demon blood like the Slayer is, they have this reaction to the perpetual slaughter-fest that is fighting Hell.
  • Visual Title Drop: What happens in the chapter Kneecapped With A High-Powered Energy Pistol? The Slayer kneecaps Adam with his high-powered energy pistol.
  • War Is Hell: And boy howdy is it ever, especially when your foe is Hell itself. At this point, all of Team RWBY have endured Break the Cutie moments, and Fox was gruesomely killed by the Deag Grav.
  • Wanton Cruelty to the Common Comma: This trope riddles the story along with Rouge Angles of Satin, especially as the chapters go on, as if the author writes entire chapters in one sitting. While the author does make it a point to go back and revise the chapters to alleviate this, it can still be irritating for first reading if you're a Grammar Nazi.
  • Was Once a Man:
    • Any of the Possessed count as this since they were once human. Just ask Fox.
    • The Slaves of Doom are actually former humans from ancient Remnant that had their souls fragmented when the Brother of Dark wiped out Humanity during Salem's Rage Against the Heavens. The fragments were left adrift in the afterlife, filled with pain, rage, resentment, and all sort of horrible feeling. Before they, with the power of the Brother of Dark that destroyed them, twisting their souls and through sheer collective anger at the Gods and Salem for doing this, warped the empty space of the afterlife to create Hell. Which also twisted them into the Demons we see now. And after taking their rage out on each other for a time, the Demons eventually unite under the Icon of Sin to take their revenge on the Gods and Salem.
  • Well-Intentioned Extremist:
    • Aside from the Slayer's ruthless methods against demons and his enemies, he's also shown a willingness to take extreme action should they deprive Hell or Salem of a foot-hold, such as wanting to kill Amber to prevent her Maiden abilities from falling into the wrong hands should it come to that.
    • Professor Peach reveals that this is why she set up the demonic assaults on Beacon, there is no stopping the war between Ozpin and Salem, and she truly believes that the only salvation is to wipe the slate clean, which translates to killing everyone and effectively sentencing them to damnation.
  • The Worf Effect:
    • A downplayed case occurs when Ozpin fights the Slayer. The battle happens off-screen and ultimately ends in a stalemate with the two of them bloodied and bruised, which shows that Ozpin is the ONLY person on Remnant that can fight the Slayer and hope to come out alive when he actually wants to kill you.
    • The Slayer casually puts Qrow in his place when he confronts him. Granted, Qrow was inebriated due to having several pain killers in his system, but considering the fact that Qrow is a Functional Addict when it comes to things like alcohol and the Slayer's track record against almost everything else in Remnant, he would've gotten his ass kicked even if he didn't have pain medication.
    • As seen in "Inferno Road I: Suffer", the demons conquered the Naruto world while the Slayer was out before the events of the story.
    • The Marauder becomes the first enemy the Slayer faces that pushes him to his limit. It took everything he had just to snap his neck, and even that wasn't enough to kill him. Yang even lampshades this.
      Yang: Didn't we back a ton of steel over him!? He's tougher than you, BJ.
    • The Broken-Horned Baron gets built-up in the beginning of chapter 24 as a powerful boss-demon that the Slayer and team RWBY will need to give their all to defeat. Showing how much tougher they are at this point due to the life threatening experiences, it's killed without much effort by them.
  • World of Badass: Remnant already was this, but add the Slayer and demons to the mix, and this goes Up to 11. The fact that the Beacon students and most Huntsman can fight against the demons is badass in of itself, but the Slayer intends to make the students even more so to ensure their survival.
  • World's Strongest Man: The Slayer is pretty much the most powerful man on Remnant, as his physical might far and away exceeds what any Remnant native can accomplish, especially since he has no Aura or semblance to call on in a fight. The only character so far who can match him is Ozpin, who's the World's Best Warrior.
  • Would Hit a Girl:
    • The Slayer really doesn't care about things like gender when it comes to combat. If you're his enemy, he'll kill you without a second thought. The opening chapter alone has him brutalize White Fang members of both genders, with the female in particular getting her jaw punched clean off.
    • Demons don't care for gender. They'll mercilessly rip you to pieces and desecrate your corpse without any regret, be you male or female.
  • You Monster!: Eva's last words to Yang after she kills her.
    Eva: M-murderer... You... murderer...
  • You Remind Me of X:
    • Thanks to the Slayer's silver eyes, Ruby finds herself being reminded of her mother when she's around him, which contributes to her closeness to him.
    • Ruby tends to remind the Slayer of his younger brother, Hunter Blazkowicz. This contributes to his protectiveness of her.
  • You're Nothing Without Your Phlebotinum: A number of Beacon students assumed that the Slayer's abilities were derived from his Praetor suit and that he wouldn't be impressive without it. Needless to say, he completely disproves this notion.


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