The X-Men was the original title for the X-Men launched by Stan Lee and Jack Kirby. Under growing anti-mutant sentiment, Professor Charles Xavier creates a safe haven for the growing mutant population and he recruits five young adults for a super-hero team, named the X-Men (for "extra power" or the X-Gene, which causes mutant evolution). The first volume of the book featured the five mutant heroes Cyclops, Beast, Angel, Iceman, and Jean Grey as they battled not only villains, but increasing prejudice against mutants. This also marked the first appearance of longtime X-Men foe Magneto and the Brotherhood of Evil Mutants. The title never caught on with readers at the time; most readers thought the book was a poor Fantastic Four knockoff. Despite bringing in new characters such as Cyclops's brother Havok and Polaris (another of Magneto's children) and crossovers with the The Avengers, sales still slumped. The title ran for 67 issues before being canceled, and reprints of the issues ran until issue 93.Later, the series was uncancelled in 1975 with Giant-Size X-Men, which introduced new mutants and a more diverse team: Storm, Colossus, Thunderbird, Banshee, Sunfire, Nightcrawler, and Wolverine. Chris Claremont took over writing duties, with Dave Cockrum and later, John Byrne as artists/co-plotters. This was when X-Men finally hit its stride and became a bonafide smash, with credit due to the new creative team and a number of memorable storylines such as the "The Dark Phoenix Saga" and "Days of Future Past". After Claremont left, many writers and artists carried the series on, such as Jim Lee, Scott Lobdell, Ed Brubaker, and Matt Fraction. With issue #114, the series retitled itself Uncanny X-Men. While the series began as The X-Men, the entire series is referred to as Uncanny X-Men for convenience's sake, and also to differentiate it from Adjectiveless X-Men. This volume carried on until 2011 and ended with issue #544.
The first volume provides examples of the following tropes:
Anti-Hero: Numerous over the years, but the biggest would be Emma Frost, who was part of Norman Osborn's Cabal.
Doubly so for Namor, who was part of both the Illuminati and the Cabal.
Arson, Murder, and Jaywalking: When an "artist" decides that setting up a display involving Sentinels in the city where mutants have made their home is a good idea, we get a nice one.
Angel: Sadie, come on! Twenty-foot-tall death machines— Beast: Genocidal robots no more artful than an A-Bomb— Emma Frost: Banal, predictable "shock schlock" that was passť in New York ten years ago— Wolverine: Hell with this.
Breakout Character: Wolverine is probably the biggest example, but Storm could also count.
Conservation of Ninjutsu: During the "Second Coming" crossover, a big one was that the Nimrod sentinels were being taken down remarkably easily, to the point where two X-Men could take one down together, and Namor could take three at a time. One Nimrod used to be able to take an entire X-Men team.
Stan Lee and Jack Kirby make an appearance in an issue of Claremont's run.
When Jean faces Firelord, he is sent flying, and a man tells his friend Dave that "he hits the ground with this incredible sound effect" just as Firelord hits the ground. While running away, he asks if Dave is still listening, to which Dave says "Chris, do us all a favor -- shut up and run!!" Dave is clearly supposed to be Dave Cockrum, the artist on The X-Men at the time, and the man is Chris Claremont himself.
Curb-Stomp Battle: The all new, all different team's first encounter with Juggernaut, due to a combination of lack of experience and his sheer ability.
Disney Death: The entire team during "Fall of the Mutants", with, for a while, the entire world thinking the X-Men were dead. It also led to Nightcrawler and Shadowcat moving to England and forming Excalibur.
Disproportionate Retribution: In a training exercise, Logan tries to kill Colossus because he pushed him out of the way of a falling pillar, thus "cramping his style"... Douche.
Dragon Lady: Miss Locke for Arcade. She literally used the codename Dragon Lady.
Enemy Mine: Magneto almost kills Mesmero for daring to defeat the X-Men.
Headbutting Heroes: Wolverine and Cyclops are a pretty well-know example, with Wolvie hating Cyke for his cautiousness and Cyclops hating Wolverine for not following orders and his lone wolf tendencies. They got better, but it never really faded completely.
Heel-Face Turn: Rogue, who started out as a member of The Brotherhood before joining the X-Men to help with their power.
Heroic BSOD: Storm, following her Depowering. Forge helped her get through it... though she did not take it well when she found out he was responsible for it in the first place.
Heroic Sacrifice: Jean thought she was pullign one when she decides that, with her TK, she can keep out lethal radiation long enough to pilot a shuttle containing the X-Men. However, the Phoenix decided differently.
Omniscient Narrator: You and the X-Men had saved the world from a nuclear holocaust, but you losta man to do it... and try as you might, you can't balance those scales in your mind or in your heart... can you, Cyclops? Cyclops: No. Narrator: Can you? Cyclops: No! Narrator: CAN YOU? Cyclops: NO!!
Jerk with a Heart of Gold: Early Wolverine was, put succinctly, a raging asshole, often drawing his claws on his teammates for minor offences (he once tried to kill Colossus for saving his life for God's sake). It takes some time (in and out of universe) for him to lighten up.
Killer Robot: The Sentinels, not to mention the much more advance model Nimrod.
Large Ham: Even in a World of Ham, Storm stands out for being the hammiest. Especially during Claremont's run.
Laser-Guided Amnesia: It turns out that, when Emma and Namor confronted Sebastian Shaw about his building Sentinels, Selene made sure Emma forgot about the entire event. She remembered when she pieced her memory back together after fighting the Phoenix.
Missing Dad: Cyclops' dad, Corsair, shows up when the X-Men first encounter the Shi'ar, and after a quick mind-scan, Jean reveals to the two their relation.
Shaming the Mob: When Rogue tries to join the X-Men, they swear then and there to quit. Professor X promptly reminds Storm that she once stood by Wolverine when he was at his worst, so why should Rogue not be given a chance? This more or less convinces them.
Ship Tease: Emma and Namor. She's half of why he even aligned himself with the X-Men.
Shout-Out: When Lilandra first appears, Misty Knight, at the time Jean's roommate, makes a Star Trek reference.
Shut Up, Hannibal!: Jean tells Wolverine to shut up when he acts like a dick to try to stop her from piloting a shuttle through a solar flare (she says her TK will protect her).
Tempting Fate: When Professor X mentions Moira Mactaggert will be looking after the mansion while he's away, Banshee assumes she'll be some manner of old hag. He is naturally speechless when he opens the door for her, and pretty much falls for her then and there.
The second volume was launched in 2011, and was written by Kieron Gillen. This volume was launched after the Schism event which itself was born out of the event House of M, in which nearly the entire mutant race was depowered. The X-Men split themselves into two, following either Cyclops's or Wolverine's ideologies. This volume focused on Cyclops's "Extinction Team" as they went to any length to prevent the extinction of mutants or save the world in general, while demonstrating to the world that mutants still had a Badass Army. The volume ended in 2012 with the Avengers vs. X-Men event changing the entire course for Cyclops and his followers.
The second volume provides examples of the following tropes:
An Arm and a Leg: Emma loses an arm against Mr. Sinister. Being in diamond form, she doesn't die from blood loss or anything, and she gets better.
Badass Army: Cyclops' goal, kind of carried over from the previous volume, was to establish that mutants still had one, despite the even lower numbers.
Badass Crew: The Extinction team, who are the protagonists. They are the biggest heavy hitters of the X-Men.
The Big Guy: Colossus and Namor are the heavy hitters of the Extinction Team.
Cannon Fodder: When the Extinction Team attacks Sinister's new city, they find that he has turned the civilians into clones of himself. Most are barely equipped to deal with one X-Man, let alone a team, and are dressed mainly for style. Needless to say, he did not give any shits about their well-being.
Colossus, who at the time was host of Cyttorak, although it wasn't a consistent thing.
Also, Magik, who is still in the brig for her actions in the New Mutants series.
What the Hell, Hero?: Captain America gives one to Cyke when he has his team leave a team-up in order to help Hope.
I want YOU for the Uncanny X-Men.
The third volume was launched in 2013 as part of Marvel's Marvel Now relaunch. Written by Brian Michael Bendis, the volume takes place after the events of Avengers vs. X-Men with the mutant gene restored and with it the status quo. Mutants are being persecuted as they awaken and the X-Men are divided. Cyclops has become the face of a Mutant Revolution in order to prevent past tragedies from repeating, bringing him into conflict with old allies and the Avengers.The students' character sheet can be found here
The third volume provides examples of the following tropes:
Academy of Adventure: Cyclops' New Xavier School and Wolverine's Jean Grey Institute of Higher Learning.
Accidental Kidnapping: Cyclops is kidnapped by some bounty hunters mistaking him for Havok (their client didn't bother to mention he wanted the Summers brother who has blast rings coming out of his chest and hands}.
Adaptive Ability: The new Sentinel's are modified to counter any mutant power they encounter previously.
All Girls Want Bad Boys: Maria Hill is attracted to Cyclops, despite trying to arrest him for technically being a criminal.
Anti-Hero: Cyclops, and the team in general, barring the students.
Back from the Brink: Due to the efforts of Scarlet Witch and Hope in Avengers vs. X-Men, this happens to the entire mutant race, due to the reactivation of the mutant gene from the destruction of the Phoenix Force.
Badass Teacher: Magik is now a teacher and has become even more powerful.
Berserk Button: Seeing all the Mutant Growth Hormone floating around in Madripoor and Mystique having the audacity to claim it was their new Genosha sent Mags on a rampage. He literally dropped a building on her in the end.
Big Bad: Regarding the whole S.H.I.E.L.D. VS X-Men thing, it's revealed that Dark Beast was behind the conflict.
Big Damn Heroes: Hijack, in issue #22, during S.H.I.E.L.D.'s attach on the Jean Grey school. He singlehandedly ruins Dark Beast's plans.
Broken Ace: Magneto, Cyclops, and Emma. Also, Magik, as eventually revealed.
Dazzler too, after being captured and used for months without any help.
Distracted by the Sexy: Benjamin is distracted by Magik. His power also works like this to some degree (he's able to make people trust him by subtly shifting to resemble them, becoming someone they would trust and/or be attracted to).
The Stepford Sisters are ordered by Emma to take away the group of new mutant's fear in order to deal with the demons in Issue #6, averting Mind Over Manners, since this was basically a Godzilla Threshold situation.
Irma does it later in Issue #17 to calm Triage down, but he doesn't mind.
Fantastic Racism: In full-force now that the Mutant population has started to rise up again.
Slightly subverted in that mutants are also receiving far more visible support than ever before from humans; as seen in both Uncanny and All-New, a good number of humans (primarily college-age and teens) are romanticizing the idea of being a mutant, and Cyclops, while wanted by the authorities, is treated as some kind of messiah by a good number of citizens for the well-intentioned acts he did while Phoenix-up'd, prior to being driven mad by the power and the fight with the Avengers.
After running into a newly awakened Inhuman, the team questions whether or not they will be the victims of racism against the Inhumans, since, as they point out, it is hard to tell the difference between an Inhuman and a mutant.
Forced to Watch: Dormammu forces Magik to watch as he orders his demons to kill her friends/students in Issue #6.
Frame-Up: The mysterious Bubble-Head is framing Maria Hill for the attacks against Cyclops' team so as to get them to go to war with one another. Both sides suspect something is amiss, a third-party in play, but neither one can trust that the other isn't guilty.
Godzilla Threshold: With no choice left in dealing with Dormammu, Magik had to take the entirety of Limbo inside of her and jump back in time to see Doctor Strange for help.
Have You Tried Not Being a Monster?: Fabio's parents hit him with this in Issue 8 and Eva's mother gave her a lighter version in Issue 3. Not overt about it, but they think its something Church can fix and don't accept it.
Fabio can and does earn the team's respect when he starts using his balls as projectiles, knocking back a brand-new Sentinel.
Benjamin, whose power isn't so much useless as it is not for combat, learns that his power isn't just shapeshifting, but the power to make people feel good about themselves and hinder technology, making him suitable for infiltration or calming down hostile situations (which saved Celeste's life at one point).
Kill and Replace: Or "Drug and Replace in this case: Mystique has taken over Dazzler's role within S.H.I.E.L.D. without them knowing it. She's been locked up and kept sedated so Mystique can use her blood.
Mistaken Identity: Scott is mistaken for Alex by some bounty hunters in the Annual Issue.
Off Model: During the Uncanny X-Men/Iron Man/Nova special crossover, in Nova Special, we have Tempus spontaneously have telepathy apparently, because she got one of Irma's speech bubbles. Oops.
Plot-Relevant Age-Up: In Issue #17 Eva ends up lost in time for a bit and comes back looking aged by a year at least judging form her hair and features.
Police Brutality: The cop in Issue #8 promptly shoots a mutant and threatened to do the same to his girlfriend.
Power Incontinence: Anyone who had been taken in or doused with the Phoenix Force has had their power altered and fluctuated, the Phoenix Five and Magneto being the main ones.
Matthew Malloy can't initially control his powers, so he winds up killing everyone in a ten miles radius.
Rabid Cop: The cops cross into this territory more often that needed.
Same-Sex Triplets: The Stepford Sisters. Although Irma decided to cut her hair and dye it black while Phoebe decides to go and become a redhead.
Schmuck Bait: The Pro-mutant rally. Emma even said it was a trap and this was after Magneto, who they aware is playing double agent, urged them to send a message back. It wasn't intentional by either S.H.I.E.L.D. or the people, but a new type of Sentinel did drop down and attempt to kill them.
Screams Like a Little Girl: Triage, on the field trip to Tabula Rasa, because he saw a fist-sized spider-slug thing. Note he didn't scream like that when he was sent to Limbo or facing a Sentinel.
Fabio wants out after having to deal with the demons in Limbo. He comes back an issue later.
Magneto, who went off into his own series.
Secret Test of Character: Issue 17, which opens with Magik teleporting the students to an unfamiliar location (Tabula Rasa) and telling them to "Have fun." The test was to see what kind of survival skills and character the students have. Only one of them failed because he deliberately kept his phone despite being warned that S.H.I.E.L.D. would track them to it, which they did in 15 minutes.
Sexy Mentor: Emma Frost decides to wear a sexy punk-ish outfit when comforting Benjamin after his fight with Scott. It just makes him incredibly uncomfortable since he's only wearing a towel at the time.
Ship Tease: Irma and Triage have a bit of this going around.
The Stool Pigeon: David Bonds' girlfriend, Karen, promptly tells the Police when confronted that he was a mutant. Then she acts shocked and horrified when they shoot him.
Stop or I Will Shoot!: The Police are insanely aggressive and don't hesitate to shoot when given the chance. Given how mutants are generally hated and feared, and law enforcement officials have historically been rather hostile to discriminated groups, if not part of the hate groups themselves, this should surprise no-one.
Straight Gay: Borders on But Not Too Gay; Benjamin/Morph claims to be gay when arguing with Emma in issue 14. At no point prior to this was there any indication he was gay, and actually seemed to have some attraction to Magik. He spends the whole issue basically flirting with every man and woman Emma can find for him to practice his abilities.
Fabio not only bravely stood up to, but even knocked back the very challenging Blockbuster Sentinel with a bombardment of balls.
Benjamin calmed an highly-advanced race of telepathic creatures in Tabula Rasa without fear after they put down Celeste.
Tempus can move them throughout time to avoid attacks.
Magik deserves mention too since started studying magic with Doctor Strange.
Hijack started out being able to turn on cars and stuff... And can now hijack Helicarriers that themselves are already hijacked.
Took a Level in Jerkass: Dazzler of all people, who unlawfully takes Fabio into S.H.I.E.L.D. custody. As he pointed out, they did kidnap him, although S.H.I.E.L.D. has done worse and her interrogation wasn't violent. That being said, Mystique doesn't do wonders for her reputation afterwards since she's intent on taking down both S.H.I.E.L.D. and Cyclops.
Used to Be a Sweet Kid: The students find a picture of the original New Mutants and are astounded at how normal Magik used to be.
Villain Decay: In the same issue as his first appearance, no less, the villain behind Cyke's kidnapping goes from sipping wine and acting regal and menacing to a complete pushover who can't stand up to his hired Elite Mooks.
Well-Intentioned Extremist: Cyclops is turning into one. He was content to be a martyr or a political prisoner, but after he witnessed a mutant being killed and the warden of the prison orchestrating it, he allowed Magneto to break him out in Avengers vs. X-Men, which sets up the premise for the series. There's more focus on the well-intentioned part though; all he wants is to protect mutants at all costs and doesn't wish to harm anyone, but refuses to back down when he sees anyone attacking mutants or mutant-supporting humans.
The Worf Effect: The Avengers get taken out by Tempus, a new mutant who hasn't even come into her powers for more than a week at best.
Worthy Opponent: Magik has repeatedly shown she has a large respect for Doctor Strange's prowess in the mystic arts despite being on opposite teams at the moment. She even takes lessons from him in the past to control her powers better.