Talking the Monster to Death: Lucy gets this at least twice. Once in her fight with the rock-and-roll assassin in the Tower of Paradise, where she specifically talks Juvia out of the Mind Control that she has been put under, and later in the Oracion Seis fight, where Lucy convinces most of Angel's Celestial Spirits to defect.
Jose is not happy with just firing a Wave Motion Gun at the ruins of Fairy Tail's base and its wounded members. He then turns his own base into a Humongous Mecha Wizard, which proceeds to draw a magic seal that will wipe out an entire town.
Likewise with Laxus attempting Fairy Law during his arc.
Natsu in the Edolas Arc (justified considering the humans there are ready to not only kill all Fairy Tail members, but even to slaughter a whole species just so they can continue using magic for amusement purposes). Cue Unstoppable Rage.
Also Natsu when battling Zancrow after seeing that Grimoire Heart's Master Hades had given Makarov a giant buttkicking.
The general guild reaction to the attack by Phantom on Shadow Gear.
Black Wizard Zeref tells Hades that making him forget his compassion is an unforgivable sin. Then he kills Hades in cold blood.
Time Skip: Gets one after the S-Class exam arc, of seven years, no less. And the series actually manages to subvert this trope. Those who were on Tenrou Island were frozen in time, so they didn't age one bit and feel like a few hours have passed, while the rest of the world is seven years older. Also "Those who were on Tenrou Island" consists of the entire main cast (Natsu's team) AND nearly all the important secondary characters (Juvia, Gajeel, the Take Over siblings, Cana, Makrov etc). Only a small handful of characters experience the skip.
There is another one just a few chapters later, but it's only three months. Hilariously enough, the main characters go through a similar subversion again, spending a day in the Celestial Spirit World while the three months pass in the real world.
Time Stands Still: Racer's power is not super-speed, but slowing down everybody else's time perception to make him seem faster Which causes some Fridge Logic. Earlier, Brain ordered him to fetch Jellal's coffin, and he said it would take at least half an hour. If his powers basically allow him to slow the perception of time of everyone in a determined range, then he was as good for this task as everyone else. However, this could be explained that he used his Dead Gran Prix motorcycles to do it. Also, maybe he'd fooled his own allies about the nature of his power.
Also, in the Cursed Island Arc. Turns out the villagers weren't humans cursed to turn into demons, but shapeshifting demons who were cursed into forgetting what they were and start to think they were humans. But, fortunately, Our Demons Are Different.
Mystogan turns out to be Jellal's look-alike.
Everyone in Cait Shelter but the leader, Wendy, and Carla were illusions the leader created so Wendy could have friends, and the leader himself is only a spirit.
Too Dumb ToSee: After Natsu screams out fire, after seeing Makarov lose his trunks, Gray and Gajeel looks through the telescope anyway.
Took a Level In Badass: Strangely averted for Lucy, the main character. She is getting better with her celestial spirits, but she's still not at the same level as Natsu, Gray, or Erza. Then again, those three are pretty damn powerful.
Lucy officially takes a few levels after unlocking her Second Origin. She can now summon multiple spirits at once, combine their attacks, and double her magic power with Gemini to cast Uranometria on her own.
The S-Class Trial is put on hold after barely 10 chapters however, and what follows is the (as of yet) longest arc in the series with the regular formula of unorganized fights against an evil Dark Guild. Also, the Grand Magic Games are strongly implied to be Not Just a Tournament.
Tragic Dream: Jellal's dream of a world of freedom may count, in a sort of twisted way.
Transformation Is a Free Action: Averted in the manga -- Erza is known to be exceptionally fast with her Exquipping. In the anime, they play it straight when she's bringing out the big guns.
Unwitting Pawn: Jellal is victim of this twice. He spends eight years as Ultear's pawn, and then Brain uses him to awaken Nirvana. To a lesser extent Retei Lyon and his entire group, everyone working under Jellal in the Tower of Heaven, the first magic council. Basically, if you've spoken to Ultear, assume you're being used.
Jellal (subverted in that he was being manipulated) and the Kingdom of Edolas who used magic to suck up lands made up of innocent people from an alternate universe and turn them into crystallized magic. Just so his kingdom could continue using magic. The king, Faust, takes it a step further by being willing to sacrifice even his own subordinates just to achieve his goal.
Mystogan as well, in case you didn't believe he really was Jellal's Edolas counterpart.
Almost all of Lucy's celestial spirits have one based on the animal they resemble. Amusingly, Sagittarius (who looks like a human wearing a costume) adds "Hello Hello (Moshi Moshi)" to everything he says, and Cancer suffixes everything with "ebi" (a.k.a. prawn). That last one really disappointed Natsu and Happy, who were certain that he was going to say "crab" as his tic.
Looks like all the male cats in Extalia do this as well. Happy's dad says "Kaah!"
Ichiya and Nichiya say "Men!"
Hot Eye/Richard and "Yes! (desu ne/Desu yo!)"
In the anime, Hughes and Sugarboy qualify as well too.
The realization that he is alone, his underlings are defeated and everyone else in the guild are risking their lives to stop him completely shatters Laxus' composure. Unfortunately, instead of collapsing, he goes into Unstoppable Rage.
The Oración Seis seems pretty prone to this. Both Racer when Lyon figured his powers out and Angel when Gemini disobeyed her in favor of Lucy's kindheartedness towards celestial spirits have broken so far. Brain has a pretty good one here too, with eyes bulging out and everything.
Edolas-Erza when she's screaming about how Edolas will suffer without magic. Like Laxus, she also goes into Unstoppable Rage, not that it helps.
Gildarts' power causes everything around him to be destroyed if he doesn't pay attention and control it. He is alsoThe Ditz. The town Fairy Tail is based in actually changes shape to accomodate his presence by elevating all the houses and creating massive straight roads leading directly to the guild.
Natsu suffers from an extreme form of motion sickness. Lampshaded when it was first revealed. Oddly, the fact that he can use Happy to fly does not cause this. This is pretty ridiculously HandWaved by Natsu simply stating that "Happy isn't a vehicle!". This from the guy who gets nauseous on top of a still raft. Also, Happy isn't a vehicle, but apparently Lucy is.
Turns out, ALL Dragon Slayers have this weakness eventually, apparently including both 1st and 2nd Generation.
Edolas!Natsu has the exact opposite weakness. He's only Badass while he's in a vehicle. Otherwise he's a complete wuss.
Fried really cannot handle himself around fanservice. Too bad for him then that not only are his opponents in chapter 204 women, not only are they in bikinis due to the temperature, but both of them can summon even more women. Subverted in that he was faking it all along as an excuse to lose to his opponents out of guilt about nearly killing them in the past. Bixlow even calls him out for choosing such an unbelievably ludicrous weakness.
Wait... the guy who's got the killing magic... is ZEREF?! Oh jeez.
And again in Chapter 215, where we learn Master Hades, the leader of Grimoire Heart, is the previous leader of Fairy Tail.
And in 216... as Makarov is curb stomped by Hades, after he reveals that Zeref is "the essence of magic."
In 221, apparently Grimoire Heart intends to use Zeref to kill all of the Muggles in the world and remake it as a world of wizards... and they've just caught the final ingredient...dammit.
In 235, [[spoiler: Azuma uproots the entire Tenrou Tree, and it is revealed its magic was boosting Fairy Tail's magic, and keeping them alive under the Kin's onslaught. In other words, with it gone, not only are the Fairy Tail wizards being further drained of magic, but it also heavily implies that Makarov and Mirajane really are going to die now.
And 253... oh my God, the 253rd chapter... To elaborate, Acnologia destroys Tenrou Island seemingly along with the entire core cast and many extras, and then has a 7 year time skip. Watch out for the wall!
Personal Wham for Lucy in 256: Her father has been dead for an entire month.
What the heck happened to Erigor "the Shinigami" from the Lullaby Arc? Erigor showed up again in Episode 55 of the anime, only be beaten easily by Natsu and have his clothes stolen by Jellal.
Where the hell was Angelica during the Nirvana arc?
Whatever happened to Gray's smoking habit from the first few chapters??
Those people Sho sealed in cards. Were they ever freed? What about the one who saved Lucy? She owed him. They're not even mentioned in passing. It's given a Hand Wave in Episode 34 of the anime: Gray, Lucy, and Juvia alerted the council's soldiers before they ran off to rescue Erza.
Also, In episode 48 of the anime the guy trapped in the card is one of the cameos for the Fantasia Parade, they got out one way or another.
What the Hell, Hero?: Sugarboy informs Gray that the key to the Dragon Cannon can be used to change everyone back from Lachima, and then freaks out after Gray destroys it anyway. Subverted when Gray reveals that he can duplicate the key out of ice.
Whip It Good: Lucy sometimes carries a whip, typically one that ends in a spade/heart shape.
Wild Card Excuse: Happy's answer to questions such as "Why are you blue?", "Why can you fly?", or "How come you can talk?" is always "Because I'm a cat!" cheerfully and likely intentionally ignoring the fact that these questions are because he is a cat.
The Worf Barrage: A sustained assault against the Big Bad of the S-Class Exam arc, from a united front of various Fairy Tail members using some of the most powerful techniques seen in the series so far, successfully destroyed his cape and made him mad (maybe he liked the cape).
Zeref also gives one to explain how Ultear beat him. His explanation can be sumarized as "becuase I didn't want to kill her, my magic was ineffective. Now that I'm out for blood I'm back to full power."
World of Badass: Actually subverted. Despite the fact that there are loads of Badass characters, who tend to hog the spotlight, only 10% of the Fairy Tail world's population can use magic. But Grimoire Heart plans to use Zeref to create such a world, where only the badass can survive
This seems to be in effect for the entire world of Fairy Tail, actually. There doesn't seem to be a distinction made between genders at all, at least as far as fighting goes.
Natsu actually invokes this when he suggests a round of fighting to find out who is the strongest wizard in Fairy Tail.
Happy: Natsu... I don't think you should go picking battles with girls...
Natsu: Guys or girls has nothing to do with it!!
Xanatos Speed Chess: Brain in his plan to obtain Nirvana. He originally intended to get it by himself, but when he realized that Wendy was with the group sent to stop him, he used her to make his plan move faster, having her heal Jellal, who would in turn fetch Nirvana for him. When Jellal attacked him, instead of going This Cannot Be! he ordered Cobra to follow him. His assumption was right, as Jellal restarted Nirvana... With the intent of destroying it. But, instead of breaking down or trying to force Jellal to obey him by any meaning, Brain simply deactivated the self-destruction spell Jellal cast on Nirvana, succeding in his plan at last.
You Gotta Have Blue Hair: Natually, Jellal is the first that comes to mind here. Other people with unrealistic hair colors include Natsu, Levy, Juvia, Wendy, Bisca, Fried, Erza and Cobra (you can have somewhat red hair, but not that red), and Mirajane, Lisanna, and Elfman, since their hair seems to have always been white.
You Have Failed Me: Brain gives Cobra this treatment after Natsu nearly beat him with a single roar.
Brain:(after shooting Cobra in the shoulder) I don't need the six demons if such an average guild can defeat them so easily, you trash!!
Edolos Arc: Team Natsu manages to keep the Lacrima from crashing into the Exceed homeland and Mystogun suddenly arrived to warp the Lacrima back to Earthland, back to their original forms. Everyone begins to celebrate and things seem peachy... then Erza Knightwalker fires a shot at Pantherlily and comes after the group with the Edolas army in tow!
End of the S-Trial Arc: Fairy Tail manages to repeal Grimiore Heart despite taking some serious wounds. All the members come out alive and are healed. Laxus is back even though no longer a member and Cana reveals to Gildarts that she is his daughter who accepts her. All seems right with the world...wait whats that ominous evil looking dragon over the island?
Zero-Approval Gambit: Mystogan decides to unite Edolas... by draining it of its dwindling magic and offering himself up as the villain that Pantherlily will kill, thus making him the new king. Pantherlily has some complaints with that plan, and wants to turn it around so that he'll be the villain, and Mystogan, who is Edolas' long-lost prince, will be the hero. Things hits a serious snag when both of them realize they can't bring themselves to kill the other. Natsu, Gajeel, and Wendy manage to salvage the plan by posing as rampaging demons for Mystogan to defeat, and the reverse anima convenient sucking them back to Earthland makes it look like they "died" by his hand.