[[quoteright:330:http://static.tvtropes.org/pmwiki/pub/images/xtrope_7340.jpg]]
[[caption-width-right:330:The strangest superheroes of them all.]]

->''"They will always hate us. We will never live in a world of peace. Which is why control and non-violence are essential. We must prove ourselves a peaceful people. We must give the ordinary humans respect, compliance, and understanding. And we must never mistake that for trust."''
-->-- '''Emma Frost''', ''Astonishing X-Men #1'', volume three.

The '''X-Men''' are a [[SuperHero superhero]] team in the Franchise/MarvelUniverse. They were created by writer Creator/StanLee and artist Creator/JackKirby (but made famous by writer Creator/ChrisClaremont and artist JohnByrne) and first appeared in ''The X-Men'' #1 (September 1963).

The series focuses on the emergence of a human subspecies colloquially referred to as mutants. Mutants are humans who possess the "X-Gene", a gene that gives them special superpowers and unique capabilities, which normal humans lack. They are believed to be humanity's next evolutionary phase and, though many mutants wish to live peacefully, some have caused great harm to the human population. Because of this, all mutants in general have been met with fear, discrimination and hatred by humans. Under a cloud of increasing anti-mutant sentiment, Professor Charles Xavier creates a haven at his Westchester mansion to train young mutants to use their powers for the benefit of humanity, as well as to prove mutants can be heroes. Xavier recruited Cyclops, Iceman, Angel, Beast and Jean Grey, calling them "X-Men" because they possessed "X-tra" power by having the X-Gene. Though the X-Men started off with just five members, as the years went on, many characters joined the team. Just as many left, and some returned.

Early issues introduced the team's archenemy, Magneto and his Brotherhood of Evil Mutants, who would battle the X-Men for years. Although the original team was composed entirely of [[WhiteAngloSaxonProtestant WASPs]], as was typical of the time, the All-New, All-Different team of 1975 [[AffirmativeActionLegacy was incredibly diverse]] (and [[FairForItsDay for the most part]] averting CaptainEthnic), and subsequent team makeups have kept this aspect.

The ''X-Men'' comics have been adapted in other media, including animated television series, video games, and [[Film/XMen a rather successful series of films]].

Due to a massive spike in popularity in the late [[TheEighties 1980s]], the ''X-Men'' name now covers a whole franchise of different titles. These are some of the various spin-offs to be found here on TV tropes.
----
!!Here are the different incarnations of the X-Men so far:

* '''The Original Team''' (Stan Lee/Jack Kirby, Roy Thomas/Neal Adams): The founding team from 1963, which featured '''[[EyeBeams Cyclops]]''', '''[[WingedHumanoid Angel]]''', '''[[GeniusBruiser Beast]]''', '''[[AnIcePerson Iceman]]''', and '''[[MindOverMatter Marvel Girl]]''' as its central cast, and was led by '''[[ChromeDomePsi Professor X]]'''. These early issues introduced '''{{SelfDemonstrating/Magneto}}''' as the team's archnemesis, along with his Brotherhood of Evil Mutants, which at the time featured his twin children '''[[ComicBook/QuickSilver Quicksilver]]''' and '''ComicBook/ScarletWitch''' (before both reformed and became [[ComicBook/TheAvengers Avengers]]), '''Mastermind''', and '''Toad'''. While the early issues focused on typical good versus evil/law versus crime stories, they did feature an undertone (which, depending on the issue, would become more overt) of racism and prejudice as a central theme. When the Lee and Kirby team left the book and it was, after a few different teams, passed to Roy Thomas and Neal Adams, who added '''[[AllYourPowersCombined Mimic]]''' (the first non-mutant, and only briefly), '''[[ExtraOreDinary Polaris]]''', and Cyclops's long-lost brother '''[[EnergyAbsorption Havok]]''' to the roster, as well as retconning '''[[VoluntaryShapeshifting Changeling]]''' into becoming a member to facilitate one of the first instances of ComicBookDeath. However, the book proved not to be exciting enough for readers, and suffered from poor sales, to the point where issues #67-93 were just reprints of older issues.
* '''The New X-Men''' (Len Wein/Dave Cockrum, Chris Claremont/John Byrne): After the disappointing original run of the X-Men in the '60s, 1975 saw a change as Wein and Cockrum released the pivotal ''Giant-Size X-Men'' #1. In this issue, Xavier and Cyclops were forced to recruit a new, international, multi-racial team, made up of '''[[WeatherManipulation Storm]]''' from Kenya, '''[[TeleportersAndTransporters Nightcrawler]]''' from West Germany, '''[[MadeOfIron Colossus]]''' from Russia, '''[[MakeMeWannaShout Banshee]]''' from Ireland, '''[[PowerOfTheSun Sunfire]]''' from Japan, '''[[LightningBruiser Thunderbird]]''' from an Apache nation, and, of course, '''{{Wolverine}}''', to save the old team from a failed mission. This team was ''immensely'' more popular than the first, and can likely be attributed to the franchise's growing popularity ever since. Sunfire left the team immediately after his introduction, and Thunderbird was promptly killed, and the X-Men found themselves delving into [[TheBronzeAgeOfComicBooks a darker territory than before]]. Marvel Girl soon rejoined the team, thus heralding the series' best known story arc, TheDarkPhoenixSaga.
* '''Post-Phoenix X-Men''' (Chris Claremont/John Byrne): After the death of Jean Grey, the face of the X-Men continued to, pardon the pun, [[IncrediblyLamePun mutate]]. The last of the founding members, Cyclops, took an unspecified leave of absence to grieve, leaving Storm as the leader. '''[[IntangibleMan Kitty Pryde]]''' was soon recruited, which led to the famous ''ComicBook/DaysOfFuturePast'' storyline. Shortly after, '''[[PowerParasite Rogue]]''' was recruited, and '''[[KidFromTheFuture Rachel Summers, the second Phoenix]]''', Cyclops and Jean's child from an alternate future, was sent back in time to join the team. Other recruits during this time included '''[[PsychicPowers Psylocke]]''', '''[[GadgeteerGenius Forge]]''', '''[[FadSuper Dazzler]]''', and '''[[ArtificialHuman Longshot]]''', who was an alien, rather than a mutant. Then, perhaps most pivotally, '''[[spoiler:[[HeelFaceTurn Magneto]] himself]]''' reformed and joined the team, even being appointed leader of the X-Men's first spin-off team...
* '''[[NewMutants The New Mutants]]''' (Chris Claremont/Bob [=McLeod=]: As the X-Men got more and more successful, [[ExecutiveMeddling higher-ups decided]] it was time to cash in on the success. Claremont and X-Men editor Louise Simonson didn't want to turn the X-Men into a franchise, so that the X-Men could remain unique and special, but after being informed that the series would be created regardless of their involvement, they put together the New Mutants, who bore a resemblance to the original five as they were all teenagers with uniforms, but also to the 70s team as they were multi-ethnic and international. Led by '''[[spoiler:Magneto]]''', it was made up of '''[[MagicalNativeAmerican Mirage]]''', '''[[FlyingBrick Cannonball]]''', '''[[PeoplePuppets Karma]]''', '''[[ThePowerOfTheSun Sunspot]]''', and '''[[OurWerewolvesAreDifferent Wolfsbane]]'''. The team was quickly expanded after [[spoiler:the death of Karma]] to include '''[[ConvectionSchmonvection Magma]]''', Colossus's sister '''[[BlackMagicianGirl Magik]]''', the techno-organic alien '''[[RobotBuddy Warlock]]''', and '''[[WhatKindOfLamePowerIsHeartAnyway Cypher]]'''[[note]][[VideoGame/KingdomHeartsII Y'know?]][[/note]].

[[foldercontrol]]

[[folder:The current main titles are:]]
* ''ComicBook/AllNewXMen'': A title launched as part of the 2012 Marvel NOW! initiative, started by Creator/BrianMichaelBendis and Stuart Immonen. The setting takes place in the aftermath of ''ComicBook/AvengersVsXMen'' where the original five X-Men are yanked from the past into the present day.
* ''Comicbook/AmazingXMen'', written by Jason Aaron and drawn by Ed [=McGuinness=] launched in 2013. The volume's first arc revolves around the X-Men facing of against Azazel in the afterlife world with Nightcrawler, who has been dead since 2010's X-Crossover ''Second Coming''. The book focuses on grand X-Men adventures and features the teachers of the Jean Grey School and first time X-Man [[Comicbook/NewWarriors Firestar]].
* ''ComicBook/XForce'': Relaunched following the ''Vendetta'' storyline that closed out the previous X-Force books, Uncanny X-Force vol 2 and Cable and X-Force, follows a new team led by Cable, featuring Psylocke, Fantomex, Marrow and Doctor Nemesis.
* ''ComicBook/UncannyXMen'', the original title, and the longest running since the 1960s.
* ''ComicBook/WolverineAndTheXMen'', [[WesternAnimation/WolverineAndTheXMen not to be confused with the animated series of the same name]]. Written by Jason Aaron, it was the main title of Wolverine's Gold team and focuses on the adventures of Headmaster [[ComicBook/{{Wolverine}} Logan]], Headmistress [[ComicBook/{{Storm}} Ororo]] (formerly Kitty Pryde) and the rest of the staff and the students on the Jean Grey School for Higher Learning.
* ''Comicbook/XFactor'' (not to be confused with [[Series/TheXFactor Simon Cowell's show]]). Relaunched in 2014 as ''All-New X-Factor''.
* ''[[ComicBook/AdjectivelessXMen X-Men]]'' (commonly nicknamed ''Adjectiveless X-Men''), the relaunch of the title as a separate entity from Legacy, its first arc was an event that confronted the X-Men against the son of Dracula and many vampires, the most remembered side effect of this battle was the transformation of Jubilee into a vampire. It was a book that focused on the X-Men interacting with the MarvelUniverse, and after ''Schism'' showcased a team Storm led from Utopia. In 2013, a new volume was launched and focused on an exclusively female X-Men team.
[[/folder]]

[[folder:Comic book titles linked to the X-Men include:]]
* ''ComicBook/AgeOfApocalypse'': Spinning out of the ''Uncanny X-Force'' arc "The Dark Angel Saga", this title follows characters in the apocalyptic hellhole that was once the setting of the eponymous crossover from the 90s. The title ended in 2013 with the BatFamilyCrossover ''X-Termination.''
* ''ComicBook/AlphaFlight''
* ''ComicBook/AstonishingXMen'', started by Creator/JossWhedon and John Cassaday to critical acclaim. It initially featured Cyclops, Emma Frost, Wolverine, Beast, Shadowcat, and the resurrected Colossus as the core team, later replaced by Storm and newcomer Hisako Ichiki (AKA: Armor). Since then, the volume has been written by different writers (such as WarrenEllis, Greg Pak, and Marjorie Liu) with different teams and story arcs, one of the most famous being Northstar marrying his boyfriend. The title ended in October 2013 with 68 issues.
* ''Comicbook/{{Cable}}''
* ''SelfDemonstrating/{{Deadpool}}, duh!''
* ''ComicBook/{{Excalibur}}''
* ''ComicBook/{{Exiles}}''
* ''ComicBook/GenerationHope'', after the events of Second Coming, the mutant Messiah Hope Summers returned to the 616 universe and started repopulating the mutant race activating the powers of new mutants around the world. This book is about her and her group of mutants called "Lights". The title ended with #17 in 2012.
* ''ComicBook/GenerationX''
* ''ComicBook/NewMutants''
* ''ComicBook/NewXMen''
* ''ComicBook/UltimateXMen''
* ''Comicbook/UncannyAvengers'', a mutant-heavy SpinOff of ''Comicbook/TheAvengers'' that features the X-Men members Wolverine, Rogue, Havok and Sunfire as main characters.
* ''X-Men First Class''
* ''ComicBook/XMenForever''
* ''X-Men Legacy'', previously known as just X-Men (or "Adjectiveless X-Men" to distinguish it from Uncanny). Started off as a showcase for Jim Lee, but it was transformed into Grant Morrison's New X-Men to coincide with the first two movies. After ''Schism'', the book served as a display for Rogue and the teachers at the Jean Grey School. The second volume, launched as part of the 2012 Marvel NOW! initiative focuses on Legion, Professor Xavier's son.
* ''X-Treme X-Men'': A title premiered in July 2012 by Greg Pak that featured ComicBook/{{Dazzler}} and a team of alternate universe X-Men and is similar in tone to the ''Exiles'' series. Has no real relation to the 2001 Creator/ChrisClaremont series of the same name. The title ended in 2013 with the BatFamilyCrossover ''X-Termination.''
* ''ComicBook/{{Wolverine}}'' (which had its own spin-off titles, including ''Origins'' and ''The Best There Is'')
* And storylines:
** ''ComicBook/TheDarkPhoenixSaga''
** ''ComicBook/DaysOfFuturePast''
** ''ComicBook/GodLovesManKills''
** ''ComicBook/AgeOfApocalypse''
** ''ComicBook/HouseOfM''
** ''ComicBook/AvengersVsXMen''

...and too many more to name. Every major character has had at least one miniseries, usually several. [[http://en.wikipedia.org/wiki/List_of_X-Men_comics See what]] TheOtherWiki has to say about it.
[[/folder]]

[[folder:In addition to the comic series, they have also been adapted to television:]]
* ''WesternAnimation/XMen''
* ''WesternAnimation/XMenEvolution''
* ''WesternAnimation/WolverineAndTheXMen''
* ''Anime/XMen''
[[/folder]]

[[folder:And film:]]
* The ''Film/XMen'' series
[[/folder]]

[[folder:And last but not least, our merry mutants have starred in a few videogames:]]
* ''VideoGame/XMenChildrenOfTheAtom'': Fighting game based on the ''StreetFighter'' model that led to...
* ''VideoGame/XMenVsStreetFighter'': Crossover between the X-Men and Street Fighter, which spawned [[VideoGame/MarvelSuperHeroesVsStreetFighter a few]] [[VideoGame/MarvelVsCapcom sequels]].
* ''VideoGame/XMenNextDimension'': 3-D fighting game based on the Operation: Zero Tolerance storyline.
* ''VideoGame/XMenLegends'': Series of action/role-playing video games, which are based on various comic continuities but take place in their own.
* ''VideoGame/MarvelAvengersAlliance'' has many of the X-Men as part of the roster of playable heroes, [=NPCs=], and bosses.
[[/folder]]

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!!The ''X-Men'' comics provide examples of the following tropes:

* AbortedArc: When Alisa is introduced, she worries about a mysterious person finding her, but nothing has come of it in the 6 years since then.
* AbsurdlySharpBlade: Wolverine's adamantium-coated claws.
* AcademyOfAdventure: The Charles Xavier School For Gifted Youngsters and now renamed Jean Grey School For Higher Learning
* ActionDressRip: Wolverine performs this for Jean Grey when they're escaping from some sentinels, Jean having been captured while on a date with Cyclops, and is having difficult doing the deed herself.
* ActionGirl: Most, but not all of the X-Women, fit this in spades. Though there are [[FauxActionGirl exceptions]]...
* TheAdjectivalSuperhero: A dozen times over, to distinguish all their ''many'' series. "All-New, All-Different", "Astonishing", "Uncanny", and "X-Treme". Parodied with the FanNickname for the original book, "Adjectiveless X-Men".
* AddictionPowered: The drug Kick is a highly addictive power-booster that works only on mutants. [[spoiler: It's inverted when it's revealed that it comes from the sentient bacteria Sublime, making its mutation to ''be'' an addictive power source]].
* AfterActionHealingDrama: Repeatedly. Many scenes take place in a hospital waiting room.
* AlikeAndAntitheticalAdversaries: The X-Men are a diverse bunch, as are most of their foes.
* AllOfTheOtherReindeer: Many of the X-Men are ostracized for their gifts.
* AlternateUniverse: This trope often crosses over with BadFuture, but not always. As the trope itself describes, the X-Men and their associated SpinOff groups sometimes find themselves either having to deal with, or sometimes even visiting, various different AlternateUniverses or Bad Futures, to the point where several different members of the team even come from the. Rachel's from the DaysOfFuturePast timeline, Cable spent most of his life in a Dystopic Hellhole, Bishop's from a Cop from a future where mutants either work for the government or are otherwise herded into concentration camps, and X-Man and Uncanny X-Force's Nightcrawler are from the ComicBook/AgeOfApocalypse timeline, where Apocalypse started taking over everything before the X-Men were even formed.
* AlwaysChaoticEvil: Just about every villainous group, like the Reavers, the Purifiers or the Hellfire Club to name a few.
* AmazingTechnicolorPopulation: Mutant skin color ranges far beyond peach to brown seen in humans. Blue is an especially common color, for some reason -- there have probably been more blue X-Men than black X-Men. Background mutants are also commonly given unusual skin color to make their subspecies immediately identifiable to the reader.
* AmazonBrigade: The 2013 relaunch of (adjectiveless) ''X-Men'' will feature an all-female team: Storm, Rogue, Kitty Pryde, Rachel Summers, Psylocke and Jubilee. It also appears that they're going to get a villainous counterpart with a race-lifted Lady Deathstrike forming a "Sisterhood" with Typhoid Mary and Amora the Enchantress
* AmusingAlien: Lockheed the dragon.
** Astonishing reveals that he isn't a regular TeamPet; he's an alien empathy who speaks dozens of languages, and is smarter than the professor. [[spoiler: And he'd been spying on the X-Men for SWORD since he came back.]]
* AnimalThemedSuperbeing: Wolverine, Maggot, Leech, Beak, any of the Phoenixes, Thunderbird, and, to a certain extent, Kitty Pryde when she went by the name Shadowcat were all members that utilized this trope. Also, when Beast became lion-like, he invoked this trope but not necessarily before that point. Nightcrawler completely subverts this, having nothing to do with the worm from which his name stems.
** As for villains, there is Toad.
* AntiClimacticUnmasking: The story arc of Kaga in Astonishing X-Men, who is nothing more than [[spoiler: a deformed elderly man who survived Hiroshima who's jealous of the X-Men's looks]].
* AntiHero: Wolverine is the archetypal example, but many more have joined
** At present count, these X-Men characters are {{Anti Hero}}es: Archangel, Cyclops, Emma Frost, Magik, Namor, Psylocke, Wolverine, Warpath, ComicBook/{{X 23}}. Really, it's starting to look like there are more anti-heroes than there are heroes.
** While AntiHero might be too strong a term, Thunderbird was certainly a jerk and was killed off because he and Wolverine were deemed too similar.
** [[spoiler:Colossus]] in the Breakworld Arc.
** Magik in ''Inferno''
* ApocalypseMaiden: Jean Grey as the Phoenix.
* ArmyOfTheAges: Inverted when Fitzroy tries to conquer the present (his past) with future sentinel technology. It finally backfires spectacularly when he opens a portal to a prison riot in the future, bringing in a horde of mutant inmates - Bishop follows.
* ArtisticLicenseBiology: While very common in comics in general, it is especially prominent here where genetics (especially the "X-Gene") are a catchall [[PlotDevice plot device]].
** Lampshaded by the Professor in the [[Film/XMen first film]]:
-->'''Professor X:''' (''narration and first lines'') Mutation: it is the key to our evolution. It is how we have evolved from a single-celled organism into the dominant species on the planet. This process is slow, normally taking thousands and thousands of years. But every few hundred millennia, evolution leaps forward.
* AshesToCrashes: Destiny (girlfriend/advisor to Mystique) left very specific instructions for when Mystique was to scatter her ashes. It was to be on the fantail of a particular cruise liner, on a specific date, at a specific time. Mystique waits for the specific time, then tosses the ashes, only to have the wind blow them right back in her face. The fact that Destiny was a clairvoyant means the entire thing was a rather macabre practical joke. Mystique appropriately laughs at her lover's final joke.
* AssimilationBackfire: Even though Rogue is not [[TheAssimilator an assimilator proper]], her absorption power has often enough resulted in assimilation backfire, e. g. absorbing a particularly strong personality may result in her control of her own body to the persona she absorbed. This happened with Spiral, for instance. She also sometimes had to struggle for control of her own body with some other personalities she absorbed, especially with that of ComicBook/MsMarvel.
* AuthorAppeal: The way Claremont writes Storm becomes... noticeable, over the years.
* AuthorCatchphrase: Especially during Creator/ChrisClaremont's run.
* BackFromTheDead: Professor X was the first major character, but later on Jean Grey remains one of the first superheroines to be brought back from the dead. But if you think she was KilledOffForReal even a fraction as many times as Magneto, [[NeverLiveItDown you haven't done your homework]].
** It has become something of a joke at how many characters have died and returned. But trying to avert this not only fools nobody, it comes across as writers using averting this to get rid of characters they don't like.
** The entire team dies in ''Uncanny X-Men'' #227, only to come back a few pages later.
** Characters like Psylocke and Colossus have been killed off, only to return, in the case of these two, both returned in the ''same year''.
** [[spoiler: Nightcrawler.]]
* {{Badass}}: Wolverine, Storm, Gambit, Cyclops, Beast, Nightcrawler, Psylocke, Havok, Polaris, Rogue, Iceman, Colossus, Shadowcat, Emma Frost, Warpath, {{Cable}}, Jean Grey, Jubilee, X-23... Just too many badasses to count.
** Quite frankly, any and all mutants with any semblance of a viable and half decent power are going to be badasses assuming they get the proper training (and/or are relevant to the story somehow).
* BadassFamily: Mutation is obviously genetic, so this tends to show up pretty often.
** The Grey-Summers extended family is the ''ne plus ultra'' of this in superhero comics. Briefly put, that family covers a SpacePirate[[note]]Whose second wife is an alien CatGirl[[/note]], his two mutant paramilitary sons (and one ''space emperor'' son, and one 90s reject who [[FlipFlopOfGod ''might'' be his son]]), his eldest son's [[AGodAmI demigod]] wife (and her super-powered clone), their also-occasionally-godlike [[Comicbook/{{Cable}} son]], who came back from a BadFuture as an old man[[note]]and is technically the child of the aforementioned clone[[/note]], their daughter, [[RunningGag who's from a different bad future,]] and their ''other'' occasionally [[Comicbook/XMan godlike son]] (from a bad AlternateUniverse that ''isn't'' the future). Finally, the first of those sons has both a son ''and'' an evil clone of his own. [[BadAss And they're all pretty badass.]]
** The Guthries too, with the exception of [[TheScrappy Jay]].
** The Bohusk-Salvadores. Barnell and Angel stayed in the superhero game [[BroughtDownToNormal even after being depowered]], and a BadFuture revealed their grandson would be the third generation of a heroic legacy.
** Also Wolverine's [[DysfunctionalFamily Dysfunctional]] BadassFamily. We have his long [[SomethingWeForgot forgotten son]] {{Daken}} who wants to kill him, and then there's his teenage [[DistaffCounterpart female clone]]/daughter figure ComicBook/{{X 23}} who was a member of {{X-Force}} and has been [[TykeBomb killing people since she was a pre-teen]].
* BadassLongcoat: Gambit primarily, though Rogue and others have been known to don the longcoat on occasion. Subverted by Jubilee, whose [[IconicOutfit most iconic costume]] is a flashy bright yellow longcoat.
* BadFuture: "Days of Futures Past" is a major one, where Sentinels have taken over America, and killed almost every suphero.
** Apocalypse also takes over the world 2,000 years in the future and is equally awful.
** Bishop's future. It starts with one of the X-Men turning traitor and killing the others, and gets worse from there. At some point there was a nuclear war, and by the time Bishop's born mutants are thrown into camps. The camps eventually get destroyed, but this means a lot of mutants running around who really don't like humans, forcing some mutants to form their own police force. And then there are the marauding packs of vampire-monsters. And just to add insult to injury, no-one has a [[IWantMyJetpack jetpack]].
** Few futures seen thus far can be considered GOOD. [[spoiler: Cable's most recent book sent him through what may be one timeline, or many timelines. Messiah Complex sent two clones of Madrox into two separate futures, one where humans had packed mutants into concentration camps (Bishop's time) and one where Homo superior had violently come to dominate the planet. Only the "What If: Age of Xavier" has ever produced an alternate reality that didn't completely suck, in this Troper's memory.]]
* BarrierWarrior: The Blob and Unus the Untouchable are examples of these. Subverted in that they're both obnoxious {{Jerkass}}es who use their powers to bully others.
* BatFamilyCrossover: Very common. For a while, they were affectionately referred to by fans as "X-overs". At times, the X-Books have almost seemed like [[SupermanStaysOutOfGotham an entirely separate universe]]. ''Inferno'' and ''Onslaught'' averted this, however, as did ''Maximum Security''. And "Mutant Massacre" (X-Men's first major crossover) featured [[TheMightyThor Thor]] and the PowerPack in minor roles.
** One of the major complaints of the franchise is that Marvel rarely acknowledges the oddity of mutants getting so much more flack than other superpowered beings.
*** This is occasionally partially addressed with the idea that mutants can be anyone, signified by the famous line 'It's 1987. Do you know what your children are?' and post ComicBook/AvengersVsXMen, this seems to be being addressed through the ComicBook/UncannyAvengers.
** Some of the more successful examples of this trope are ComicBook/AgeOfApocalypse, Mutant Massacre and Fatal Attractions.
* BetrayalInsurance: Professor Xavier has a set of plans on how to stop the X-Men, Xavier himself being the subject of the first entry; however, these have rarely been mentioned since they were introduced.
* BettyAndVeronica: Cyclops choosing between Jean Grey (Betty) and Emma Frost (Veronica).
** Jean Grey choosing between Cyclops (Betty) and Wolverine (Veronica)
** And last but not least, Cyclops with Jean Grey (Betty) and Psylocke (Veronica).
* BewareTheNiceOnes: Storm, Nightcrawler, Cannonball, Colossus, Shadowcat, Beast, and most notably Jean Grey, are all pretty nice people, in spite of their lives being one big {{Trauma Conga Line}}. But ''don't push it...''
* BigBad: The major evils of the X-Men universe are [[WellIntentionedExtremist Magneto]] and [[SocialDarwinist Apocalypse]].
** When Magneto goes through a HeelFaceTurn however, new big bads pop up.
* BiggerBad: Sublime, a sentient colony of bacteria almost as old as the Earth itself, definitely qualifies. In "Here Comes Tomorrow", it was revealed to have orchestrated many events in the X-Men's past, including the creation of the Weapon X program, all in a centuries-old campaign to wipe the mutant race from the Earth (as they are the only species immune to its mind control). It's implied that it may have even manipulated humanity to create the very idea of anti-mutant prejudice in the first place.
** The Celestials also qualify. The very-abridged-and-not-''entirely''-accurate version is essentially that Sublime invented anti-mutant prejudice and the Celestials invented mutant supremacism.
* BigGood:
** Xavier originally, but since being forced to take control, Cyclops has taken this role.
** Following ''ComicBook/AvengersVsXMen'' and [[spoiler:Cyclops being branded a criminal, his brother, Havok]] has with a bit of prodding taken up the role.
* BitterWeddingSpeech: In an issue of ''X-Men Unlimited'' about the wedding of one of Emma's college friends.
* BlackAndGrayMorality: This gradually crept in ever since the late 80s Mutant Massacre, but got blatant with DarkerAndEdgier storylines the past few years.
* BlessedWithSuck: Apparently, evolution isn't too good at telling when a mutation ''totally sucks''.
** There are several examples (Cyclops, Blob, Rogue; the list goes on and on) but the Gold Medal would have to go to Wither, who ''literally'' has the power to suck out life-force... which is uncontrollable, irreversible and activates at any and all skin-to-skin contact. BlessedWithSuck figuratively ''and'' literally.
** At least Rogue's damage is temporary if she's careful, whereas Wither tends to irreversibly cripple or horribly kill anyone he touches. After M-Day, he thinks he can finally hold the hand of the girl he's in love with... and promptly maims her. Poor kid.
** Cyclops is--err, was a special case: His powers ought to be as controllable as any other energy blaster, but he suffered a concussion in his youth (his parents had pushed him out of a plane when they were attacked by the Shi'ar), which somehow lead to his inability to shut off his powers after they emerged. Emma Frost later removed a mental block to give him control of his powers, since he had apparently been subconsciously keeping his eyes on to ensure he'd never hurt anyone with his powers (her explanation). Since StatusQuoIsGod, no attempt to fix this ever stays fixed, and recently his control over his powers has gotten ''worse''.
** Surge has a similar problem to Cyclops in that she needs special equipment (her gauntlets) to control and regulate the flow of electricity to and from her body. Without it, the electricity overloads her brain and prevents her from controlling it fully.
** None of the above compares to the power of a random kid in Comic/UltimateXMen - when his mutant power (to release some kind of highly acidic toxin in the air that melted absolutely anything organic) triggered, he killed his whole hometown without even realizing it. Eventually he figured it out and hid in a cave. Wolverine was sent to track him down, and after a talk with him about how much life can suck sometime (and a lot of beer, because come on, underage drinking was the least of the kid's problems), he had to kill him because that power was completely uncontrollable and very taxing even on his healing factor, so imagine how it'd have been for, say, anybody else on the planet. He'd either have committed a hideous massacre or been weaponized, had he been left alive. To the kid's credit, he himself concluded that was the best solution for everyone, himself included.
* BlownAcrossTheRoom: Cyclops' eye beams knock bad guys back, but not Cyclops himself. It's one of the ways he's immune to his own power.
* BouncingBattler: Several characters, most notably the Toad and Bouncing Betty.
* BrainwashedAndCrazy: Practically every member of the X-Men has fallen victim to this trope at least once. (See AuthorAppeal.)
* BrokenAesop: Many.
** Despite trying to lecture the world about how great mutants were and how they should be allowed to embrace their identities, Xavier spent most of his life masquerading as a normal human who just happened to be a mutant expert. Xavier only involuntarily 'outed' himself during Creator/GrantMorrison's ''Comicbook/NewXMen'' run when he was possessed by his evil twin.
** JamesMcAvoy said he actually kept this in mind while portraying Xavier in ''Film/XMenFirstClass''. He pointed out that Xavier is a well-meaning, but ultimately misguided liberal, as he still has tons of societal advantages given that he's white, heterosexual, male, and extremely wealthy. He certainly doesn't have to put up with the same bigotry many mutants face (hell, the same bigotry many ''real world'' minorities still face), which causes his message of peace to ring false to many.
*** Also, compare Xavier's powerset to those of characters like Rogue, Toad, or Cyclops. Xavier has telepathy- a power that he can [[PowerIncontinence control perfectly]], that has absolutely ''no'' negative effects on him physically or mentally, and that is a massive benefit to his life. In comparison? Rogue's powers kill anyone she has physical contact with. She cannot control this or stop it in any way, and has resigned herself to being isolated from her peers. Her powers have drastically injured her self-esteem and social life. Toad's [[http://marvel.com/universe/Toad mutation]] turned him into an ugly, lizardlike humanoid and made him the subject of severe bullying from other children. Cyclops projects a continuous wave of destructive energy from his eyes and relies on special glasses just to live a normal life. Even ''Phoenix'', another telepath, is often overwhelmed by the thoughts of others- to the point of mental instability. Looking at the [[MurphysLaw general trend]] of mutant powers, it's hard not to think that Xavier ''really'' lucked out where the SuperpowerLottery was concerned.
** In general the X-Men books have a theme of how regular humans and mutants should coexist peacefully. The problem with this? Exactly how often did they try to have regular humans around them? How many regular humans were at the institute? How often did the X-Men go to Washington to try to convince legislators to accept mutants? The aesop seems more 'mutants should band together into militant groups to protect themselves', in other words ''[[TheExtremistWasRight Magneto's]]'' message. To make it ever worse, the first comic featuring the X-Men had them casually push around regular human soldiers with their powers because the soldiers didn't want to let them enter a military base.
** There's also a dissonance where the fear of mutants is portrayed as prejudice and fear of what's different, but there have been times when mutants - even fully-trained adults -- have lost control of their powers without meaning to and caused a lot of damage. In the '80s X-Men cartoon Storm was claustrophobic, causing her to freak out with her powers whenever she was triggered. Mutants ''are'' a danger to the normal humans around them no matter how good their intentions are and that [[ProperlyParanoid is a perfectly valid reason for fear]].
** Marvel got a ruling saying mutants weren't people for purposes of taxes and tariffs on merchandise. See [[http://goodcomics.comicbookresources.com/2008/04/24/comic-book-urban-legends-revealed-152/ here]].
** Also, after decades of using mutants as a metaphor for an [[DoesThisRemindYouOfAnything oppressed minority]] that we should love and respect, Joe Quesada mandates the Decimation event, in which a vast majority of the Marvel universe's mutants are depowered and there are in the low three digits of mutants left.
** Since their move to Utopia, the X-Men have been almost exclusively devoted to the survival of the dwindling numbers of their race, up to and including fighting the Avengers over a potential threat that might possibly re-ignite the X-gene worldwide. Even those who ended up siding with the Avengers to stop the Phoenix Five seem to have long forgotten that Xavier's dream was to have peaceful co-existence with humans, not complete segregation for the sake of safety.
* BrokenAngel
* BroughtDownToNormal: The ''Decimation'' event mentioned above did this to nearly the ''entire mutant population''. There are only roughly 300 mutants left with powers after everything is said and done.
** BroughtDownToBadass In Astonishing X-Men, Emma's mind rape of him turns off Cyclops' powers, causing him to take a gun and start shooting mental images, to make a point.
*** This also happens to both Rogue and Gambit for the second half of X-treme X-Men. An incident involving getting hooked up to a portal streaming in countless alien warships, and subsequently getting stabbed through the chest to bring the portal to a halt, resulted in the two of them losing their powers; for Rogue, she still had them for another issue, but lost them after that. Rogue and Gambit then go away for ten issues or so, trying to settle down for a bit and have a life together now that they can, you know, ''do it.'' Eventually though, they rejoin the team, but still without their powers. Does this make them any less effective in the field? The answer to that, is: ''Hell no.'' Rogue stops a bomber from blowing up over 70 people by taking the bomb off ''in the freaking air,'' and and manages to kick a few mutant's asses with just some good old fashioned brawling, while Gambit is able to take down a mind-controlled ''Bishop'', who has access to a bunch of fancy future-tech. Gambit, however, manages to use some of that tech ''against'' Bishop. In the end, the two of them both prove that they don't need their powers at all; in fact, not having their powers only makes them seem ''more'' Badass.
* BuryMeNotOnTheLonePrairie: Destiny gives Mystique a precise request on where and when to scatter her ashes because she knows the future. As it turns out, Destiny has [[TheFunInFuneral quite the sense of humor]]. When Mystique goes to honor Destiny's request, [[spoiler:the wind changes direction, and throws the ashes right into Mystique's face; she gets the joke and doubles over laughing.]]
* ButNotTooBlack: Storm is African-American, but she has fair hair and blue eyes, which is supposed to be a mark of her royal heritage. Also, Bishop is black, but he was born in Australia and is part [[UsefulNotes/AustralianAborigines Aborigine]], which may account for his straight hair and his lighter skin tone. M from XFactor is French-African and Algerian and her skin tone has ranged wildly throughout the years, from dark caramel to "damn near white."
* ButNotTooForeign: Storm has an African mother, and grew up in Africa, but her father was an American, and she was apparently born in New York.
* ButtMonkey: Ord started out as the BigBad of the Breakworld arc, only to get demoted to TheWoobie after his failure.
* CannotTellAJoke: Colossus by his own admission in ''Astonishing X-Men'' #19, after being told of a prophecy that he is destined to destroy the Breakworld:
-->"I have been planning on destroying the Breakworld ever since I was a child." (after the X-Men look at him in shock) "This is why I don't make so many jokes. I never know when is good."
* CaptainEthnic: They tend to be well written and popular characters, but many mutants skirt the line. Sunspire is the only one who fits both in powers and heroic identity and also manages to be CaptainGeographic.
* CheatedAngle: Artists' notes on how to draw Nightcrawler say that they ''must'' draw his tail with a curve in it (when character is drawn from the front, with legs apart) so the tail wouldn't look phallic.
* ChromeDomePsi - Professor X
* ChuckCunninghamSyndrome: Remember Peter Corbeau? No? Neither do the writers.
* {{Claustrophobia}}: Storm.
* ClipItsWings: Angel has large wings: during the MutantMassacre storyline his wings are mutilated and later develop gangrene so they're amputated. For a while he uses artificial wings; later real wings grow back.
* CloningBlues: Jean Grey and Madelyne Pryor. Cable and Stryfe. Magneto and Joseph. Wolverine and X-23. [[spoiler:Apocalypse and Genesis.]]
* ClothesMakeTheLegend: Averted for most characters, with all the costume changes. Magneto is one of the few who's kept the same general costume.
** Wolverine, possibly due to WolverinePublicity, is probably the character whose costume has changed the least. He wears black leather like everyone else in the movies and the Ultimates line, and in the main continuity his costume has gone through a slight color shift and ragged phases, but that's nothing compared to the variations every long-running main team member goes through. He did have a brown and orange costume for a while, though, but returned to his old colors soon enough.
* ComicBookFantasyCasting: John Byrne based the original designs for all the Hellfire Club characters on famous actors.
** Byrne also based Kitty Pryde on an adolescent Sigourney Weaver.
** During his run on ''{{ComicBook/Excalibur}}'', Alan Davis based his version of Kitty Pryde on a young Creator/KatharineHepburn.
* ContinuitySnarl: Everything from the pasts of many characters to the origin of mutants.
* ConvenientTerminalIllness: A flashback explaining how Professor X could come back from the dead uses this: a terminally ill mutant scallywag calling himself the Changeling offered to pose as Xavier so the Prof could prepare for an imminent invasion.
* CrapsackWorld: The Marvel Universe verges on this for mutants. Let's face it, if a mutant exists somewhere, a lynch mob can't be far behind.
** The ComicBook/DaysOfFuturePast reality and ComicBook/AgeOfApocalypse are more straightforward examples.
* CurbStompBattle: The first time the New X-Men faced Magneto, freshly rejuvenated and restored to sanity, he beat them without breaking a sweat.
* DangerRoomColdOpen: TropeNamer.
* DarkLord: Apocalypse does this in Cable's future and during the ComicBook/AgeOfApocalypse.
* DeadAlternateCounterpart: There's an alternate universe in which ''hundreds'' of alternates of the X-Men the readers know have been killed for an arguably greater good.
* DeadlyTrainingArea: The Danger Room, which is probably the TropeMaker and definitely the TropeCodifier, at least for the superhero genre.
* DemonicPossession: The Shadow King is a recurring X-Men villain with the psychic powers, who does not have a physical form. To compensate he possesses the bodies of others.
** Proteus has to possess people, as his RealityWarper powers burned out his body, and [[PossessionBurnout does to those he possesses.]]
* DemotedToExtra: Cyclops in TheMovie. Kitty Pryde gets this in most adaptations, despite spending years as one of the central characters of the series.
* DependingOnTheWriter:
** Many of the characters, since there are a lot of them and have been a lot of writers.
** You'll also notice a subtle difference in the way sympathetic characters use the word "human" as a blanket term for both mutants and ordinary humans, but occasionally use it to mean just ordinary humans when it's clear from context they're not implying a value judgment. Under some writers, though, they'll avoid the second usage or use the word "human" exclusively for non-mutants (e.g. specifying "humans ''and mutants''" when talking to aliens). For a long time, this didn't vary from character to character, except for villains: the anti-mutant racists inhuman freaks unworthy of being part of humanity while evil mutants are emphasizing the supremacy of homo-sapiens-superior over mere {{Muggle}}s. However with the recent Decimation and Endangered Species events, everyone is referring to mutants as a separate species from humans without regard to the good/bad implications.
* DifferentlyPoweredIndividual: Mutants are classified as Omega ([[AGodAmI potentially limitless power]]), Alpha (can turn their powers on or off), Beta ([[PowerIncontinence always on]]) and other lower-tier classes. Besides mutants, there are the Mutates, the Neo, the Children of the Vault, and plenty of other named "subspecies" of superpowered folk that are just like mutants, except--not.
* DisproportionateRetribution: In order to get to Muir Island from Scotland, the X-Men purchase a boat, which in short order gets totalled by Magneto. What does the boat's owner do in response? Sneaks over to Moira's facility and tries to ''blow it up''. He even says that if anyone's killed then 'so much the better'. LaserGuidedKarma comes in the form of [[BodySurf Proteus]], who takes over the man before he can do anything.
** [[CharacterisationMarchesOn Before he mellowed out]], this used to be Wolverine's thing. Someone would do something and he would respond with violence or threats. For example, Colossus sees a steel beam falling towards Wolverine (this was back in the days before Wolverine had an established healing factor) and pushes him out of the way. Wolverine's response? He tries to kill Colossus for "cramping (his) style".
* DoUntoOthersBeforeTheyDoUntoUs: One of the key differences between Magneto's and Xavier's viewpoints - Magneto believes this, Xavier doesn't.
* DoesThisRemindYouOfAnything: "Mutant = black" was a major theme in TheSeventies and TheEighties, now more-or-less abandoned for "mutant = gay".
*** Legacy Virus = AIDS. Genosha = WorldWarTwo concentration camp.
** Which brings us to HaveYouTriedNotBeingAMonster. X-Men is one of the Trope Namers. Mutant = being gay but with superpowers of varying usefulness/appeal, and no marriage controversy, but giant robots want to kill you.
*** It's a lot more obvious in TheMovie. It helps that the director, Brian Singer, and the star, Creator/IanMcKellen, are both openly gay.
*** Unless you're a gay mutant. Poor, poor Northstar, who is both of those things, and French-Canadian on top.
** Additionally: In the book ''Who Needs a Superhero?'', H. Michael Brewer uses the X-Men (and mutants in general) as an illustration of how Christians are to be "in the world, but not of the world." He discusses the four basic ways mutants deal with being hated by humans (peacefully coexisting [Xavier], attacking back [Magneto], compromising to fit in (Nightcrawler's holographic disguise), or withdrawing entirely [the Morlocks]) and how each fails to capture the entirety of the Christian's duties. (Better solution, says Brewer: a cross-over.)
* {{Dominatrix}}: X-Men writers [[AuthorAppeal LOVE this trope]]. Emma Frost is the most obvious example. But then there was also Jean Grey as the Black Queen in ''TheDarkPhoenixSaga''. More recently, [[http://2.bp.blogspot.com/_Gd8NBIma-zo/SLDB0ZdmWII/AAAAAAAAEzs/RJtC6McJXu4/s400/Uncanny_X-Men_%23501+-+redQueen.jpg Red Queen]] took it UpToEleven in the "Manifest Destiny" arc.
* DysfunctionJunction: ''Hooooooo'' boy...
* EarlyInstallmentWeirdness: The original series can serve as this when comparing its teenage heroes, uniforms, mundane crime-fighter missions, and Beast's human form to modern comics' grown-up cast, colorful costumes, [[Disney/{{Aladdin}} phenomenal cosmic]] adventures, and the furry blue Beast.
** The first two issues alone can serve as this even compared to the other more adjacent issues, with Beast being a lot more HotBlooded and not nearly [[GeniusBruiser as intellectual]], and the first page making it look like Xavier is completely paralyzed, instead of just crippled.
** Some of the earliest issues even had Magneto having some sort of mental powers, not too dissimilar from Xavier's telepathy. This was dropped later, but it can be quite jarring to anyone used to Mags usual powerset of magnetic mastery.
* EgocentricTeamNaming: (denied in-universe, but c'mon...)
* ElementalBaggage: For Storm and Iceman's powers sources of water and ice, respectively.
* ElementalShapeshifter: Several.
** Magma can transform into magma and rocks.
** Dust can turn herself into a sandstorm.
** Rockslide and Onyxx are big guys made of rocks.
* EndOfAnAge: The Dream's End storyline, which ran through several titles and massively shook up the status quo, including the deaths of several supporting characters.
* EveryoneIsASuper: [[DeconstructedTrope It's not all cool to have a super powered population]].
* EvilCostumeSwitch: Dark Phoenix
* EvilutionaryBiologist: Mr. Sinister; Dark Beast; Apocalypse;
* EvolutionaryLevels: Mutants as "homo '''superior'''".
* FaceHeelRevolvingDoor: Magneto. In his backstory he was a friend of Xavier until they split over disagreement about how to best help mutants and almost all versions of Magneto are {{Well Intentioned Extremist}}s, so it's a relatively small jump to a {{What Have I Done}} moment leading him to moderate his methods or an {{Enemy Mine}} situation forcing the X-Men to put up with him despite them. Circumstances don't let him stay that way, however. DependingOnTheWriter comes into play, as well, both [[GrantMorrison in how far off the deep end he can go]] and whether he should be antihero or arch nemesis.
* FaceHeelTurn: Gambit, Bishop.
** Gambit, especially has turned this into a revolving door.
* FantasticRacism: One of the main points of the comics. They protect a world that fears and hates them.
* FantasticRecruitmentDrive: Professor X uses the Cerebro computer to locate mutants so he can recruit them into his school.
* FantasticSlur: "Mutie", "Genejoke" and "Genefreak" are a few of the more common anti-mutant slurs.
* FastballSpecial: The TropeNamer, classic is Wolverine and Colossus.
* FightOffTheKryptonite: Usually, with telepathy.
** Which is about the only thing keeping that particular power out of DeusExMachina territory in this universe...
* FightsLikeANormal: Several have powers which are either not directly applicable to combat or are too dangerous to fling about willy-nilly, and rely primarily on combat training instead.
* FireForgedFriends: Wolverine and Rogue are particularly notable.
** Given enough time, every team develops this. It's the main reason the "All-New, All-Different" crowd is as tight as it is.
* FireWaterJuxtaposition: This is part of what solidifies Cyclops' two love interests, Jean Grey and Emma Frost, as [[BettyAndVeronica diametric opposites of one another]].
** Jean is [[HeroesWantRedheads a red-haired woman]] who has gone by the codename "Phoenix" for a good bit of her career, wears a flaming bird insignia as part of her costume, and has psychic powers that frequently manifest themselves as flames. Appropriately, she's known for her warm, compassionate personality and (on darker occasions) for her unpredictable fiery temper.
** Though she doesn't actually have [[AnIcePerson ice-based powers]], Emma is frequently visually associated with ice and the cold because of her surname "Frost", her [[WomanInWhite all-white clothing]], and her diamond-based form that makes her resemble an ice sculpture. Appropriately, she's known for her icy demeanor, and her coldly cynical attitude towards life.
* FlightOfRomance: This trope is taken to a extreme when Angel has sex with Husk in mid air in front of her ''mother'', Nightcrawler, and several other people.
* FollowTheChaos: Sort of a running gag, except they don't find it funny.
* ForcedToWatch: Professor X, being forced by Mojo to watch his students compete in his twisted gameshow.
* {{Foreshadowing}}: During Whedon's "Astonishing" arc, Agent Brand mentions that [[spoiler:Breakworld had a bullet pointed at Earth's head. Except for the "head" part, this turns out to be ''literally'' true.]]
* FriendlyTickleTorture: Nightcrawler has done this to, on various occasions, Rogue, Phoenix (Rachel), and Meggan (of Excalibur). Between his teleporting ability and his prehensile tail, he's apparently quite good at it.
* FromASingleCell: Wolverine, on one occasion, which the writers have since thankfully {{Voodoo Shark}}ed out.
* FurryFandom: In the "Breakworld" arc, [[spoiler: Brand's deep secret is that she's "hot" for Beast.]]
* GangOfHats: The Hellfire Club (the mutant mafia, essentially) all dress themselves as 18th Century British aristocrats and take on the titles of chess pieces.
* GenerationXerox: Wolverine and X-23, Emma Frost and the remaining Stepford Cuckoos.
** Subverted with Cyclops and Surge in that they're not related in anyway. Other than that however, Surge is effectively a younger Cyclops, complete with crippling self doubt and a power that needs to be kept in check by an external device (in this case, her gauntlets). Her relationship with X-23 is also starting to mirror that between Scott and Logan, right down to the love triangle.
* GenreBlindness: Parallels between anti-mutant bigotry and historical racism (especially that of Hitler and the Nazis) are repeatedly emphasized, especially by Magneto. Despite that mutants, including even the X-Men themselves, have become increasingly prone to emphasize how they are a separate "species" from the rest of humanity, in many ways validating the position of their ideological opponents. This was lampshaded in an argument between Scott Summers and Jamie Madrox. The latter, who favors living in New York City and running his team, X-Factor, as a private detective agency argued that the real problem was that normal humans could not tell the difference between good mutants and evil mutants. Scott insisted that was ridiculous, and at that exact moment [[HeelFaceRevolvingDoor Magneto, Emma Frost and Namor]] appeared to welcome Jamie to their "Brotherhood" (a reference to Magneto's old Brotherhood of Evil Mutants). Layla Miller, who was following them while they argued, promptly [[FunnyMoments doubled over in laughter]] to Scott's chagrin.
* GenreSavvy: Anole. When Elixir tells him that he has to learn human anatomy to make his powers more effective, Anole just points out that the X-Men always have knowledge like that dumped into their heads telepathically. Also, when interrogated by SHIELD to reveal the location of his friends, he simply goes over a list of all the unlikely places the X-Men and New Mutants have gone.
* GettingCrapPastTheRadar : Chris Claremont does that very well...
** Selene forces Mirage to enjoy the sacrifices and she screams "No... Yes, oh yes !" Quite impressive.
* GiantMecha: Those big purple mutant-hunting robots.
* GiantSpaceFleaFromNowhere: Though their mission statement is to fight against human racists and mutant terrorists, at least a third of Chris Claremont's run had them fighting against random evil aliens and demons.
** Peter Milligan's Golgotha was a giant space flea... and it was ''literally'' from nowhere. Especially when you realize you expected the hangar without seeing anything suspicious... and a few moments later you come back and see there's a ginormous squicky creature on top of the Blackbird.
* {{Glamour}}: Gambit's charm is now officially part of his power.
** Gambit had this power in his first appearance and even had it listed as a power in TSR role-playing modules.
* GoodIsNotNice: Wolverine is the most notable example, thought Cyclops has recently faded into this area due to the dark age forcing him to take command and become Nick Fury with eye beams. Since the switch to the Heroic Age, he's reverted to a more well rounded, no-nonsense leader type and BigGood.
* GradeSchoolCEO: The villains of ''Schism'' are a quartet of obscenely rich kids around 12 years old, the leader of whom takes over for his late father as CEO of the company that manufactures Sentinels.
* GreaterNeedThanMine: When Rogue first joined the team, and was mortally injured, Wolverine forced her to absorb his powers, despite his own injuries, and the fact that 25 pages/half a day earlier, Wolverine literally wanted to kill her himself. Her NobleSacrifice on behalf of Wolvie, and more important Wolvie's fiancee, Mariko Yashida, convinced him that she was worthy of mercy.
* GreyAndGrayMorality: Except for the occasional OmnicidalManiac, this runs ''very'' strong as far as mainstream superhero titles go. It's rare to find a guide list that even ''tries'' to separate the non-X-wearing cast into allies and villains, and quite a few stories end with the villain talking the X-Men down.
* GuileHero: Xavier loves sneaking around and setting up long-term schemes, going back to the first time he faked his death in the SilverAge.
* HandBlast: A common manifestation of mutant powers. For example, Havoc fires concussive beams from his hands.
** The Sentinels typically fire Hand Blasts in their mutant-hunting endeavors.
* HaveYouTriedNotBeingAMonster: See DoesThisRemindYouOfAnything.
** There was a beautiful use of this during Creator/JossWhedon's ''Astonishing'' run. When a "cure for the X-gene" is found, Beast want to investigate it and see if it works, and White Queen explicitly asks him if he'd feel the same if it were a "cure" for homosexuality. Emma Frost is a beautiful, rich white woman whose powers are telephathy and turning to nigh-invulnerable diamond. Beast is a random guy from Illinois who was turned into an agile catperson who is blue, and has had more and more trouble controlling his instincts. The implication is that it's easy for Emma to say she doesn't need to be "cured", but not so much for Beast.
* HeelFaceTurn: Gambit, Magneto during his "headmaster" phase, Emma Frost, Juggernaut, Rogue.
** The Sentinels: after Decimation, they're now a human-piloted peacekeeping force to protect the remaining mutants.
* HeelFaceRevolvingDoor: ''Everyone,'' but special mention goes to Mystique.
** To be a bit more specific; Mystique joined the X-Men and left, Sabretooth joined the X-men and left, Juggernaut joined the X-Men and left, Magneto joined the X-Men, left, and ''joined again'', Sebastian Shaw joined Hope's Lights and left... Really, about the only three [[HeelFaceTurn Heel Face Turns]] to have stuck are Rogue, Tessa/Sage, (who turned out to be GoodAllAlong,) and Emma Frost. Every other villain that's joined eventually just stabs the group in the back. (Either that, or they just up and leave.) Oh, and lest we forget; Lady Mastermind joined the X-Men and left...
* HeroesGoneFishing: Mutant baseball.
* HeroKiller: Nimrod, the Ultimate Sentinel from the Days of Future Past who can adapt on the fly to any mutant power and rebuild himself from total destruction and requires at least half a team of X-Men to put down.
* HeroesWantRedheads: It's gotten less frequent since JoeQuesada became editor-in-chief, though.
* HollywoodTactics: Frequently in the older comics and in the movies.
* HomosexualReproduction: [[WhatCouldHaveBeen One proposed origin]] of Nightcrawler, [[spoiler: as Destiny and a temporarily male-morphed Mystique's son.]]
** Though canon now states that Nightcrawler is [[spoiler: the son of Mystique and Azazel.]]
*** OTOH, canon as laid down by ChuckAusten, so expect FanDiscontinuity and perhaps in the not too distant future CanonDiscontinuity as Austen has pretty much made himself persona non grata with both comic readers and the comics industry as a whole.
* HufflepuffHouse: A staple of the series in the last few years is to have a group of C-list mutants hovering around the X-Men's periphery, such as the X-kids not currently on a team, The 198, or the other mutants living on Utopia. Sometimes they'll get ADayInTheLimelight or become an EnsembleDarkhorse, but usually their purpose is to serve as background color and to provide cannon fodder should the story need it.
* AnIceSuit: Bobby / Iceman usually only wears briefs when going into his ice form.
* AnIcePerson: Founding member Iceman is one of these.
* IJustWantToBeNormal: A number of mutants, thanks to the aforementioned FantasticRacism and being BlessedWithSuck. Rogue is the poster child for it; her powers make her an outcast among her fellow outcasts.
** Interestingly, a lot of human parents [[HaveYouTriedNotBeingAMonster feel this way about their mutant children]] but when a lot of the students were BroughtDownToNormal, PutOnABus and [[DroppedABridgeOnHim the bus blew up]], they never bothered to collect their remains.
** Surprisingly averted with some characters who have obvious physical mutations, like Nightcrawler. He's perfectly happy with the way he looks, even though, resembling a blue demon, he actually would have some legitimate reasons to complain. If such a character were written by another writer and not Creator/ChrisClaremont, he likely would've fallen into this trope.
* IJustWantToBeSpecial: The U-Men are a bunch of humans who want to be Mutants.
** Donald Pierce turned himself into a cyborg because he hated being weak compared to Mutants.
* ImplacableMan: Nothing can stop the Juggernaut!
** [[MemeticMutation Nothing moves the Blob!]]
* ImplicitPrison: In Marvel Comics "Decimation" event, the Xavier Institute was called a "Haven" for remaining mutants, but was really an internment camp for them.
* InformedAbility: Due to LoadsAndLoadsOfCharacters the series have mounted over the decades and the PopularityPower, PanderingToTheBase, RunningTheAsylum factors might guide the course of the story, many mutants suffer the case of poorly expanded and very limited use of their powers, it's more common to see these renegated characters, or someone other than, stating what they could do instead of actually doing it, not even once at least in one of the many alternate universes and continuities. The most prominent examples are the Omega Level mutants, the term itself is not properly fleshed out but it's clear that the mutants under this class are likely to be a PersonOfMassDestruction, PhysicalGod, RealityWarper, etc. etc. Arguably only [[PersonOfMassDestruction Jean Grey/Phoenix]] and [[RealityWarper Franklin Richards]] has shown what a Omega Level is truly capable of; Elixir, Vulcan, Legion and X-Man have at least shown a little of their magnificent powers; but Iceman, Mister M, Rachel Summers and Torrent are really, ''really'' kept in the dark.
** [[AnIcePerson Iceman]] has gotten a major upgrade in the new Wolverine & The X-Men comic. In issue two, he defeats an army of flamethrower-wielding Frankenstein clones by activating the sprinkler system and spawning dozens of autonomous ice duplicates. It's pretty much exactly as awesome as it sounds.
*** Or the time he [[CurbStompBattle fought]] a bunch of vampires by having a priest BLESS HIS ICE FORM.
** On a smaller note, Wolverine is supposed to be a Grandmaster level martial artist, Olympic level gymnast, has high caliber tactical acumen, and is a complete and total badass with weapons (go figure). While his combat ability has actually made some appearances, those appearances NEVER show anything that really resembles the level of combat badassery he supposedly has.
* JokerImmunity: Mr Sinister, the Sentinels, Donald Pierce. None of them ever stay gone for long.
* JokerJury: Factor 3.
** Also Magneto, to Gambit.
* TheJuggernaut: Arguably the {{Trope Namer}}... [[ThisIsForEmphasisBitch Bitch!]]
* KillerRobot: The Sentinels
* KudzuPlot: Claremont's uncannily long stint on ''Uncanny X-Men''
* LaResistance: The resistance on Breakworld, who are some of the few Breakworlders who actually feel compassion, and believe caring for the weak and wounded is not a sin. [[spoiler:So much compassion, in fact, that their Prophet wants to destroy the planet to end everyone's suffering, and set up the whole prophecy in order to manipulate Colossus into it.]]
* LeftStuckAfterAttack: The Blob is a giant fat guy who literally absorbs punches into his massive belly, leaving his attackers stuck in him (in some incarnations).
* LeotardOfPower: Storm and Psylocke traditionally wear these, though there are several others.
* LessEmbarrassingTerm: In one comic, Jean Grey asks Jubilee if she still has nightmares. Jubilee responds that nightmares are for babies; she has "traumatic evening episodes."
* LetXBeTheUnknown
* LethalHarmlessPowers: Nightcrawler and Teleporting.
* LoadBearingHero: Colossus.
* LoadsAndLoadsOfCharacters: And loads and loads. The Decimation event stripped the number of mutants down to 198 because the boys at Marvel had gotten sick of trying to keep up with so many mutant characters in the ranks.
* LookMaNoPlane: Rogue does this in the ''X-Men'' comics, buzzing Air Force One and giving ol' Ronnie Reagan a thrill. She does it again in the first issue of her limited series, this time planting a kiss on one of two fighter jets.
** She also does it on returning from Japan -- she spies a 747 and decides to goof around with the pilots, scaring the living daylights out of them, it's played for laughs, just before [[MoodWhiplash she freaks out and all-on assaults the SHIELD helicarrier]] as [[WhamEpisode Ms. Marvel's memories and persona assert themselves in Rogue's mind for the first time]].
* LovesTheSoundOfScreaming: Sabretooth. In spades.
* LostAesop: Is being a mutant supposed to be a good thing or a bad thing? Many X-Folks have pointed out how the X-Men don't do much beyond [[ConflictBall fight other mutants or mutant-haters]]. Then there's BlessedWithSuck mutants like Rogue who [[IJustWantToBeNormal want to lose their mutant "gifts" altogether]]. {{Muggles}} want to [[MugglePower gain those same gifts]] because [[IJustWantToBeSpecial mutants are special]]. But anytime either side tries to change their situation with the best intentions in mind, things go wrong real fast and [[StatusQuoIsGod status quo reasserts itself]].
** Perhaps it's a case of "be yourself," which in the real world is the best solution.
** As a general rule, the more powerful they are, the more likely they are are to actually ''be'' a threat to humanity. This is especially true of Omega level mutants. Even in a best case scenario you have instances like [[GooGooGodlike Franklin Richards]] and the [[WoobieDestroyerOfWorlds Scarlet Witch]]. On the more deliberately villainous side of things you have [[TheSocialDarwinist Apocalypse]], [[AGodAmI Dark Phoenix]], [[MasterRace Magneto]], [[GenericDoomsdayVillain Proteus]], [[DystopiaJustifiesTheMeans Onslaught]], [[TheConqueror Vulcan]] and others. Is it really irrational that regular humans might be just a tad bit disconcerted by this state of affairs and feel that it could be prudent to [[MugglePower do something about it]]? For the most part, the writers have made such a point of creating dangerous and/or evil mutants, and then hurling them at the general public, that one would think humanity would have to be ''insane'' to not be terrified for their lives! Which unfortunately makes their [[FantasticRacism attitude towards mutants]] seem more than a little bit justified.
** The recurring nature of world-smashing conflicts initiated by mutant villains (and sometimes heroes), combined with the fact that most of the alternate future timeline's we have seen are of the BadFuture variety could leave a reader with a sense that the [[{{Strawmanhasapoint}} anti-mutant crowd makes sense]]. The writers seem to revel in the notion that the rise of mutants is setting the world on a path to a horrific future, and yet it is still supposed to be seen as a positive thing.
*** On the other hand, a few of the truly bad timelines (think Days of Futures Past here) have been the result of muggles attempting to exterminate mutants, so it seems like the future is screwed either way.
* TheMagicTouch: Gambit has the power to turn anything he touches into an explosive.
* MakeThemRot: The mutant Wither has the power to decay any organic material his skin comes in contact with. PowerIncontinence leaves his power permanently on. Especially heartbreaking is when the majority of mutants in the world lose their ability, Wither mistakenly believes he has too. He grabs the wrist of the girl he is in love with and her hand withers away.
* ManipulativeBastard: Mr. Sinister, resident EvilutionaryBiologist.
** Sebastian Shaw and Emma Frost also qualify.
** Even Professor X has his moments.
** Cyclops lately has also been taking a page or two from Xavier's book.
* MarriedInTheFuture:
** In "Days of Future Past", Wolverine and Storm are a married couple.
** In "The End", Beast and Cecilia Reyes are a married couple. So are Sam Guthrie and Lila Cheney.
* MassSuperEmpoweringEvent: The detonation of the atom bombs drastically increased the number of mutant births.
** Inverted with the (incorrectly named) Decimation Wave created by the Scarlet Witch, which depowered 90% of all mutants.
* MentalAffair: Scott and Emma. Not entirely surprising that Jean, a fellow telepath, catches them in the act.
* MetaOrigin: The X-Gene causes all sorts of different physical changes.
* MindOverManners: Preached more than practiced, particularly by Xavier. It could be argued that he takes the trope name more literally than most; it's not a rigid ethical code, but simple etiquette, and he'll sidestep his "principles" with all the sincere regret he'd give an ill-timed belch at a formal dinner. However, he's only gotten ''particularly'' JerkAss about it with recent attempts to make him more flawed or something.
* MindRape: What Jean does to Emma to wipe the smug look off her face after having been caught with Scott.
** Jason Wyngarde used Dark Phoenix to become more powerful, so she returned in kind... by granting him omniscience to drive him insane.
* MonsterModesty: Beast started off as looking mostly-human and was covered head to toe [[spoiler:actually to shin, since his original costume left his abnormally large hands and feet exposed]] (his original costume is depicted in the page image). Once he turned into a blue ape-man, he took to wearing black underwear and nothing else. His current costume averts this a bit more.
** In fact, Hank plays it straight or averts it depending at what point is his mutation today. He's currently reverted to black shorts only.
* MoreHeroThanThou: Wolverine and Scott Summers used to get into this all the time.
* MsFanservice: Emma Frost, full stop.
* MugglePower: For Magneto and his bunch. The X-Men, naturally, oppose both sides.
* MustMakeAmends: This happens to Magneto. He's always been opposed by the X-Men, so by now he often attacks them at full power (which is a lot) instinctively. Sadly, the X-Men are mutants... some of the people Magneto wants to protect. Even worse, the one he accidentally hurts is the newest recruit, a 13-year-old (mutant) girl. "What have I done?" is the short version of his monologue, when he realizes what he has done. Follow his VillainousBSOD and his first HeelFaceTurn as TheAtoner.
* {{Mutants}}: Of course.
* NaziHunter: Magneto tracked down the RedSkull due to his past as a Holocaust survivor.
** He also served in this role briefly for the CIA, resigning in a rather...spectacular fashion when agents killed his then-girlfriend because he had gone after a Nazi who, unknown to him, was working for the United States.
* NestedMouths: Bliss the Morlock has an extra mouth on her tongue.
* NeverHurtAnInnocent: Magneto, DependingOnTheWriter.
* NinetiesAntiHero: Cable, Bishop.
* NobleMaleRoguishMale: Cyclops (Noble) and Wolverine (Roguish) in some depictions.
* NoFourthWall: {{Deadpool}}. His entry at the top should really tell you all you need to know, but if you're still in doubt you can just go ahead and check my- I mean HIS [[ShamelessSelfPromoter awesome main article]]... Uuh... I have to go now. Ciao!
* NoPronunciationGuide: The proper pronunciation of the "M'kraan crystal" has been a source of frustration for fans for years. It doesn't help that [[WesternAnimation/XMen the 90's cartoon]] pronounced it "Em-Krahn" while the video game ''MarvelUltimateAlliance'' pronounced it "Muh-Kran".
* NotSoDifferent: Comparisons between Magneto's ideology and Hitler's are inevitable, particularly as Magneto oscillates between a WellIntentionedExtremist protecting mutantkind from the same fate his family and the rest of the Holocaust victims suffered and an [[EvilutionaryBiologist evolutionary supremacist]] who sees Homo Superior enslaving or killing off {{Muggles}} as the natural order of things.
* ObstructiveBureaucrat: Valerie Cooper, who genuinely means well (most of the time) but often takes the most counterproductive choice possible. Like protecting the X-Men by basically turning the school into an internment camp and putting giant sentinels on guard, before getting annoyed when the X-Men are offended by this.
* OddlyCommonRarity: Omega level mutants. Mutants in general are supposed to be rare. Mutants whose potential and/or actual power levels are so great as to be difficult to measure should therefore be almost unheard of. Only they are not. During the [[TheSilverAgeOfComicBooks Silver Age]] and the [[TheBronzeAgeOfComicBooks Bronze Age]] it was generally held that Professor X and Magneto were the most powerful mutants in the world. But in recent times mutants whose power equals or exceeds their's are surprisingly common, and with the recent reduction in the size of the overall mutant population they stand out even more.
* OhCrap: The Shi'ar ship that chases Lilandra to Earth is very blasé about the planet's recent history as they check it. The science officer casually points out they've already fought off [[ComicBook/FantasticFour Skrulls]] and [[ComicBook/{{Avengers}} the Kree]], and that they've met the [[CosmicEntity Celestials]]. Then she finds out that Earth has fought off [[PlanetEater Galactus]] ''twice''. The Shi'ar immediately freak out and run.
* OneSuperOnePowerset: Unlike most examples of this trope, Professor Xavier has tried many times to restore the use of his legs, but when he does succeed, [[StatusQuoIsGod he becomes crippled again before long]].
* OpeningACanOfClones
* OrgyOfEvidence: In ''X-Men Noir'', Tommy Halloway/the Angel investigates the murder of Jean Grey, which was clearly done with WolverineClaws. When he finds the missing X-Man, Anne-Marie Rankin, he's suspicious because she pointed him in the direction of Captain Logan almost immediately after they met. Halloway manages to figure out it couldn't be Logan very quickly, leading to the obvious conclusion that Rankin's trying to frame him - and since Logan's ''neko de'' aren't too hard to come by if you know where to look, she likely killed Jean herself.
* OutsideTheBoxTactic: Sebastian Shaw absorbs any kinetic energy directed at him, even a bullet, so Storm covers him in snow, which actually saps his energy, due to cold being a lack of said energy. [[note]]Ironically, 15ish years later the X-Man Bishop--whose powers are similar to Shaw's--would charge himself up ''by using snowfall''.[[/note]]
* PaintedOnPants: Nearly every female X-Man wears these at least once (but all the costume changes mean none have worn them constantly).
* PassionIsEvil: Several {{Face Heel Turn}}s are caused by emotional overload throughout the series--but the most shining example is the Dark Phoenix. The Dark Phoenix itself only came to exist because Jean Grey was fed decadent and hedonistic desires which corrupted the cosmic entity.
* PhlebotinumBattery: Cyclops' red optic blasts are charged by solar power. In a pinch they can be charged by Storm's lightning (which turns them white) but it is not at all pleasant for him.
* {{Phlegmings}}: Often exhibited by Wolverine, the Brood, and many others.
* PinballProjectile: Cyclops' optic blasts have a habit of doing this.
* PlayingWithFire: Longstanding villain Pyro was one of these, although he couldn't actually create fire. Other villains like Fever Pitch also exemplified this trope.
** Heroic examples Sunfire and Neal Sharra.
* PlayingWithSyringes: The Weapon-X project.
* PoirotSpeak
* PossessionBurnout: Proteus possessing a person causes their body to burn up.
* PowerCreepPowerSeep: The powers of several characters have been inconsistently portrayed.
** Magneto is the most notable example, with his power level depending heavily on which side of the FaceHeelRevolvingDoor he is on at any given time. As a rule, when he is being a villain he has practically unlimited power. When behaving more benignly his powers are usually dialed back substantially.
** Professor X also tends to drift around a bit, usually in response to how much he might [[StoryBreakerPower mess up the plot]]. Back in the early days, he could telepathically [[MindRape mindwipe]] an entire town. More recently, even a little bit of PsychicStatic can give him a [[PokeInTheThirdEye headache]].
** Wolverine's healing factor was not nearly as invincible in earlier stories as it is of late.
* PowerIncontinence: Most mutants start out with little to no control over their powers when first activated. Mutants not BlessedWithSuck can gain control through careful practice.
* PowerLevels: The 6 classes of mutation.
** '''Epsilon''' Mutants are unfortunate mutants. Epsilon mutants pretty much have no chance of having a regular life in society due to their major flaws like an inhuman appearance or their mutation makes it impossible for them to function normally. If that isn't bad enough Epsilon mutants also only have minor "superpowers" that are next to useless.
** '''Delta''' Mutants are like Alpha mutants in that they don't have any significant flaws. The only problem is that Delta mutants don't have powers that match an Alpha mutant, or even a Beta or Gamma mutant. They have a normal human appearance, but their mutagenic powers are weaker or only narrowly applicable, though still controllable.
** '''Gamma''' mutants have very powerful mutations, but they have flaws. Unlike the Beta mutants a Gamma mutant's flaw is a major flaw that makes his or her life very hard. Also, while Alpha and Beta mutants can pass as regular looking humans, many Gamma mutants cannot because they have physical deformities.
** '''Beta''' Mutants are on the same level as Alpha-level mutants as far as how potent their powers are. But the difference between Beta Mutants and Alpha Mutants is that the Beta Mutants have flaws, albeit very small flaws. They have a normal human appearance (or close to it) and their mutation is powerful, useful, but less controllable but can still lead a normal life with only minor preparation.
** '''Alpha''' Mutants are the second most powerful and feared mutants. Alpha mutants have extremely powerful mutant traits without any significant flaws. They have a normal human appearance and their mutation is powerful, useful and controllable (i.e. turn it on and off, direct it at will.)
** '''Omega''' Mutants are ones with the most powerful genetic potential of their mutant abilities. No firm definition has been offered in comics. As a result this classification's qualifications can fall under DependingOnTheWriter, but some abilities depicted by mutants described as Omega-level include immortality, extreme manipulation of matter and energy, high psionic ability, strong telekinesis, and the potential to exist beyond the boundaries of the known physical universe.
* PowerLossMakesYouStrong: Storm, back in the 80's. She lost her powers at the hands of Forge and ends up with a mohawk and boss of the Morlocks, she also Cyclops without powers to retain leadership of the X-Men. She was the primary leader until the teams split into Gold and Blue...then different books...and then she got married so she never actually was out of a command position.
* PowerStrainBlackout: Nearly all the female characters, especially telepaths like Jean Grey, have done this at least once across many incarnations.
* ThePresidentsDaughter: Layla in ''House of M''
* PrettyInMink: Some of the ladies will wear fur at some points. Even those not rich might wear a fur-trimmed coat.
* PsychicPowers: Professor X, Jean Grey (and all of her time-traveling offspring), Psylocke, Emma Frost... the list goes on.
** PsychicLink: The Stepford Cuckoos, Wolfsbane and Mirage.
** MindlinkMates: Jean Grey and Cyclops.
** PsychicBlockDefense
** PsychicStatic
* ThePurge: The Shi'ar are so scared of the Phoenix that if someone becomes its host, they'll throw out all the stops to kill that person and their entire family, as Rachel Grey learned first-hand.
** We later meet a Shi'ar who was on the receiving end of the same treatment as Rachel. The only reason he's alive is because the resident EvilChancellor knows that someone with the power of a cosmic entity can be useful.
* PurpleProse: Claremont's run frequently delved into it. TropesAreNotBad, though.
* RandomPowerRanking: In the comic, they have Greek letters for a mutant's power level. Omegas, the highest, can manipulate matter on the atomic level.
* RandomlyGifted: The X-gene has complicated heredity.
* RelationshipRevolvingDoor: Rogue and Gambit have been in a constant state of ‘on-and-off’ ever since Gambit first joined the X-Men, to the extent that it's practically a permanent sub-plot. While they both have declared love and devotion for one another on multiple occasions, the relationship never lasts too long before something happens and they end up separating again, only to reconcile at a later stage. This is partially due to the strain on the relationship caused by Rogue’s mutation, meaning the pair can never make physical contact, but also both partners carry some serious emotional baggage which surfaces every so often, sometimes leading to a break-up, whilst other times bringing the pair together
* RetCon: Absurdly common, especially with characters with mysterious pasts.
* TheReveal: It isn't until issue 98 that we learn Wolverine's claws are a natural part of him.
* RobotHair: In Creator/JossWhedon's run, the Danger Room developed sapience and (after creating a body from an old [[MechaMook Sentinel]]) became [[http://en.wikipedia.org/wiki/File:Dangeroom.PNG Danger]]. "She" has cables coming out of the back of her head that resemble hair.
* RoguesGallery: Magneto and the Brotherhood of Evil Mutants, Mister Sinister and the Marauders, the Friends of Humanity, the Sentinels, Gene Nation, Humanity's Last Stand, the Brood, the Phalanx, the Shadow King, Nimrod, the Juggernaut, Black Tom Cassidy, the Hellfire Club, Apocalypse and his Horsemen, the Acolytes of Magneto, Sublime, the Reavers, the Mutant Liberation Front and the Weapon X project (* whew!* ) have all functioned as recurring enemies for the X-Men as a group.
* RuleOfDrama: Common. For example, Rogue and Gambit. Every time a writer tries to resolve the angst of their relationship, the next one will find a way to stir it up again. Ditto for Polaris and Havok; the writers have used ''actual'' black holes to keep them apart.
** A few years back the lineup of one team consisted of Gambit, Rogue, Iceman, Polaris, and Havok. With Iceman ''and'' nurse Annie being part of a big [[LoveTriangle love quadrangle]] with Polaris and Havok.
* RunningGag: During ''Astonishing X-Men'', Wolverine's obsession with beer. It actually becomes a plot point: [[spoiler:a can of beer falls on his head and snaps him out of his mental reversion to James Howlett]].
* SapientShip: The Brood used [[MindRape lobotomized]] {{Space Whale}}s for transport, and the surviving ones at liberty were both sentient and ''not happy at all'' about the situation.
* ScaryDogmaticAliens: The Brood exist to mutilate and enslave other races, transforming them into still more of their depraved kind. The Phalanx exist to convert all other entities in the universe into part of their race of living circuitry. Both have clashed with the X-Men.
* SelfDuplication: Jamie Madrox, aka Multiple Man. If he leaves his duplicates separated for too long, they start to [[LiteralSplitPersonality become more independent and develop their own personalities]]. Sadly making a MesACrowd plot difficult for too long but an EvilTwin incredibly easy.
* ShapeShifterSwanSong
* ShootTheShaggyDogStory: [[spoiler:Banshee]]'s death in ''Deadly Genesis''. Not only does Vulcan kill him, but the plane he was trying to save at the time crashes, killing everyone aboard. This is often cited among fans as one of the absolute least-satisfying X-deaths, and as one they want to see reversed.
* ShoutOut: The bridge of the Shi'ar ship that chases Lilandra to Earth looks... [[Series/StarTrekTheOriginalSeries familiar]]. They even have similar uniforms, and a [[AlienNonInterferenceClause Prime Directive]]. A few pages later, Lilandra teleports to Earth, and [[ComicBook/IronFist Misty Knight]] comments that it even looks like the transporter effects.
** In ''Uncanny X-Men #218'', characters named [[Series/DoctorWho Brigadier Lethbridge-Stewart and Sergeant-Major Benton]] appear.
* SlashFic: Very common, a particular favourite is Nightcrawler/other male X-man
** ''{{Cable}} & {{Deadpool}}'' spawned a legion of Cable/Deadpool slash fic - though considering the content of the comic, one has to wonder if [[HoYay that was their intent]].
* SixthRanger: Havok and Polaris both filled this role when they joined the original FiveManBand of X-Men.
* SmugSnake: Steven Lang ([[ComicBook/AntMan No relation]]), head of Project: Armageddon, is this, and a DirtyCoward to boot.
* TheSneakyGuy: Nightcrawler might be the best example.
* SpiderLimbs
* SkunkStripe: Rogue, X-Man.
* SpacePirates: The Starjammers
* SpontaneousWeaponCreation: Psylocke's "focused totality of her psychic power".
* SpotlightStealingSquad: Wolverine is the poster boy.
** Emma Frost is now the most prominent woman on the team, over ''all the others who've been there longer''.
* StarCrossedLovers: Arguably, Scott and Jean classify as this to many fans.
* StillWearingTheOldColors: Nightcrawler wears his circus costume for years after joining the X-Men. His later costumes still take influence from the design.
* {{Stripperific}}: Dear God, this trope.
** The worst offenders in the X-Men are probably Emma Frost and Psylocke. Emma Frost is so bad that a lingerie teddy was her original costume ''and it got worse from there.'' They've even Lampshaded it in one comic, where the students are glad she wears pants now. Psylocke is noted that its not so much that her costume is revealing as it is a thong and might as well be painted on.
** Well, she was part of a club which prided itself on "going back to a purer time where money ruled without sexual inhibitions".
--> '''Emma Frost:''' "This, children, is Kitty Pryde, who apparently feels the need to make a grand entrance."
--> '''Kitty Pryde:''' "I'm sorry. I was busy remembering to put on all my clothes."
--> '''Emma Frost:''' "So gushingly glad you could join us."
** [[WorldWarTwo Doctor]] [[MagnificentBastard Nemesis]] recently [[LampShadeHanging lampshades this even further]] by [[SugarWiki/FunnyMoments finding new ways to non-stop insult Frost about this during an entire story, culminating in telling her that if she doesn't immediately follow his orders he will personally destroy every fetish wear store on the planet]].
** Storm, of course, used to go without her costume entirely.
* SunglassesAtNight: Cyclops, to keep control over his powers.
* SuperEmpowering: Sage, but only for those with latent mutations.
* SuperFamilyTeam: For various related X-Men.
* SuperRegistrationAct: [[TropeNamer The first ever]], in fact. A thorn in the X-Men's side during the eighties, it disappeared once Claremont left the books.
* SuperheroSchool: (TropeMaker) Xavier Academy, especially right in the beginning and in recent years.
* SuperHumanTrafficking
* SuperPowerMeltdown: A common problem for newly-manifested mutants, who typically have no idea that they are mutants, no prior knowledge of what their powers may be ''and'' are frequently teenagers or younger. Also tends to happen to those suffering from severe psychological issues.
* SupermanStaysOutOfGotham: Why the Avengers and other non-mutant heroes on friendly terms with the X-Men don't get involved in their FantasticRacism troubles: because they don't have to deal with it themselves. {{Lampshaded}} during the ComicBook/CivilWar when Emma Frost gives a WhatTheHellHero speech to Tony Stark asking why the X-Men should care about Stamford when none of the other heroes got involved after the destruction of Genosha.
** It's starting to get averted since the Heroic Age rolled by: the Avengers tried to help the X-Men out in dealing with Bastion (but predictably, couldn't do a thing, since Bastion raised a force field around Utopia so strong that not even [[Comicbook/TheMightyThor Mjolnir]] could break through it; by the time it was gone, it was when [[spoiler:Hope had already blown Bastion to smithereens]]). The idea behind the Uncanny Avengers is also an effort to avert this following the ''AvengersVsX-Men'' crisis: ostensibly, it's half veteran Avengers (Captain America, Thor and Scarlet Witch[[note]]Who is a mutant herself, for bonus points[[/note]]) and half veteran X-Men (Wolverine, Havok and Rogue).
* SuperWheelChair: Professor X frequently gets this though it is DependingOnTheWriter. Hovering is common.
* SuspiciouslySimilarSubstitute:
** Jean Grey gained a few of these after her original death. Let's see: her daughter Rachel Grey, her clone Madelyne Pryor, and her possible reincarnation Hope Summers are all {{Significant Green Eyed Redhead}}s that can manifest the Phoenix Force.
** Since Kitty Pryde left the team, it become a rule that the roster has to include one plucky teenage girl who latches onto Wolverine as a BigBrotherMentor. Over the years, the replacements have included Jubilee, Marrow, Armor, Pixie, and X-23. They shook up the tradition a bit with Marrow by making Gambit her mentor instead, but they cut out the middleman with X-23 by making her Wolverine's female clone (the closest thing to an actual little sister he's ever gonna get).
* TakeThat: In one ''Generation M'' comic, the main character is an alcoholic reporter. A suspiciously-familiar guy calling himself [[IronMan Tony S]] attends one of her AA meetings. At a later point, after being beaten up she refers to herself as "looking like one of [[NeverLiveItDown Hank Pym's]] girlfriends".
* TangledFamilyTree: The Summers family is a massive ContinuitySnarl to itself, and is so convoluted that at this point Scott Summers may in fact be [[MyOwnGrampa his own grandfather]].\\
\\
No fewer than four characters in the main continuity of the ''X-Men'' comics can be said to be the child of Scott Summers, only one of whom (Cable) was actually ''born'' during the timeline of the main Marvel Universe, and none of whom are more than [[ComicBookTime about ten years younger than their parents]] (including Comicbook/{{Cable}}, who is, due to the massive amount of TimeTravel in his backstory, at least ten years ''older'' than his parents).\\
\\
Add to that Scott's brother Alex, their long-lost father (the [[SpacePirates space pirate]] Corsair), and the supervillain-ruler-of-a-galactic-empire Third Summers Brother (Vulcan), and the whole thing is just one big mess. Ironically, Scott started out as an orphan with no known family.
* ThematicRoguesGallery: Most of the X-Men's enemies can be put into one of four broad categories:
** Human bigots who want to murder or enslave every mutant on Earth
** Mutant radicals who want to murder or enslave every human on Earth.
** Assorted {{Evil Overlord}}s who want to murder or enslave every mutant ''and'' human on Earth.
** ScaryDogmaticAliens who want to convert every mutant and human on Earth into more of their own kind.
* ThereAreNoTherapists: The members of the various X-teams could ''really'' benefit from regular therapy. In ''[[Creator/ChrisClaremont Claremont's run alone]]'' the main team members were repeatedly (and painfully) devolved into primates by Sauron and then evolved back, they lost Thunderbird, there was the DarkPhoenixSaga, the Mutant Massacre, [[{{Comicbook/Inferno}} Inferno]], being the captives of the Brood, Cyclops and Storm and Xavier all being tortured by William Stryker, Wolverine being tortured by the Reavers until he went partially insane, and more! It's amazing that the entire team didn't just break down sobbing and curl up into the fetal position after all of that. Apart from the members of X-Factor going to see Doc Samson a couple of times, we've never seen any of them receive any sort of treatment.
** Rogue, in particular, is a psychiatric marvel in that after all the psychic and psychological trauma she endured before and after joining the X-Men she didn't have to end her days committed to a mental hospital for life.
* TimeTravel: Starting with "Days of Future Past".
* TooDumbToLive: One fitting most X-Men media, the military and police's attempts to stop evil mutants, but particularly ones like Magneto. How many times must they throw metal tanks, missles, bullets, etc. at him only to have them effortlessly stopped and often turned against them before they realize that is not ever going to work?
* TraumaticSuperpowerAwakening: How several powers are attained, combined with PubertySuperpower.
* TrueLoveIsBoring: Don't expect many couples to last.
* {{Tsundere}}: Hellion is type A towards X-23.
* UnstoppableRage: When Steven Lang kidnaps the Professor and Jean Grey, Cyclops gets ''angry''. Angry enough that he nearly beats Steven Lang to death. The only reason he doesn't is because of Jean and a Sentinel. Even imprisoned, Cyclops is so angry he manages to break free of his restrains, and tries all over again.
* UseYourHead: The Juggernaut
* SugarWiki/VillainWhitewashingService: The X-Men franchise is [[MoralDissonance littered with]] this trope.
* VocalMinority: [[invoked]] An In Unverse version. Most mutants that are seen are usually relatively powerful, but its been said that most mutants are either relatively weak, or even completely harmless, but are still treated to the same stuff the actual dangerous ones are, and is usually the reason the Mutants are a minority metephor works. But of course, no one wants to read a comic about a group of people who only have an extra pair of hands or the ability to glow.
* WalkDontSwim: Juggernaut's default method of crossing bodies of water.
* WeaponizedOffspring: The minor villain Tusk could create smaller copies of himself.
* WhamEpisode:
** Uncanny X-Men issue 105: The alien that has been haunting Xavier's dreams [[DramaticUnmask reveals themselves]]... and just happens to be a beautiful woman.
** Uncanny X-Men issue 275: Magneto renounces his attempt at reforming, and kills Zaladane.
** Uncanny X-Men issue 388: The Muir Island facility is totalled.
** X-Men issue 108: Moira Mactaggert passes on, despite the best efforts of the X-Men. And Senator Kelly is murdered by a human.
* WhamLine: Issue 101, courtesy of Jean Grey, who it should be noted is [[NoOneCouldSurviveThat supposed to be dead]]: "Hear me, X-Men! No longer am I the woman you knew! '''I am fire! And life incarnate! Now and forever -- I AM PHOENIX!'''"
* WhatMeasureIsANonHuman: For those who think mutants aren't human.
* WhatTheHellHero: Sometimes characters get called out on things they did, [[MoralDissonance sometimes not]].
** Taken to extreme lengths with everyone's reaction to finding out Scott assembled the X-Force, a black ops team with the most dangerous mutants to go and kill the X-Men's most deadly enemies who could possibly erradicate the last of the mutants.
* AWizardDidIt: As knowledge of genetics and radiation became more prominent, it was eventually decided that SufficientlyAdvancedAliens "planted the seeds for beneficial mutation," rather than natural processes giving random people cool superpowers. [[LampshadeHanging This is not explicitly stated as fact though it at least acknowledges the underlying problem]].
* WolverinePublicity: TropeNamer.
* TheWorfEffect: If the writers want to show that a telepath, EldritchAbomination, CosmicEntity, etc. has REALLY powerful mental abilities, they have the character curbstomp Charles Xavier in a mental battle. Since most every telepath in the Marvel universe has gone up against him at some point, this happens a lot, to the point where Xavier's status as one of/the most powerful telepath on Earth becomes more of an InformedAbility.
* WouldHitAGirl: In order to break her free of Mesmero's hypnosis and lacking any solution, Wolverine reluctantly hits Jean Grey, on the basis that since they're NotSoDifferent her anger will bring her back to normal. It works, though Wolverine still gets the power of Phoenix thrown at him.
* YouGottaHaveBlueHair: Many characters, like Polaris, Psylocke, and Pixie; these usually show up as a side-effect of their mutation expressing itself.
** Psylocke actually dyed her hair, which was originally blonde, up until Spiral and the Body Shop got hold of her. After that all bets are off.
** Surge's has blue hair, it came in a bottle labeled "electric blue."
** Beast and Nightcrawler. Yeah, it's blue fur, but same difference.
* YouWouldntHitAGuyWithGlasses: Some drunkards try to pick a fight with (civilian-dressed) Cyclops. He says the stock phrase, so one of them takes off his glasses.

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