Aborted Arc: The Filler arc, because progress for the main story was proceeding faster than anticipated.
Absentee Actor: Ulquiorra is not present in chapter 55, only a quote of his in a flashback spike had.
Absurdly Sharp Blade: Ulquiorra's zanpakutō. Murciélago is so sharp it can even cut right through Ulquiorra's own hierro.
Adorkable: Twilight easily has this in spades. Her infatuation with all the mysteries of Ulquiorra's nature makes it very hard not to smile.
Affably Evil: If anyone qualifies as this it's definitely Ulquiorra. Despite his blunt nature he's capable of being polite to others and willing to engage in thought provoking conversations over a cup of tea. Despite being polite he has no qualms with killing whatever gets in his way. He'll even pay you a compliment before ripping your heart out of your chest in front of your friends.
During their rescue from the dragon, both Fluttershy and Rarity find themselves really admiring Ulquiorra's strength and dedication.
All of the Mane Six seem to gravitate to Ulquiorra for one reason or another.
It's been suggested that Rainbow Dash is physically attracted to Ulquiorra.
Alas, Poor Villain: All Chrysalis really wanted was to save her hive from starving to death.
An Arm and a Leg: Deliberately employed by Ulquiorra during an interrogation, on himself no less, to prove that he's willing to do absolutely anything to protect Equestria. Being who he is it isn't permanent.
Amplifier Artifact: The Elements of Harmony. As stated by Luna and Celestia, they don't house the individual aspects of harmony, they simply channel and concentrate the aspects, and allow for them to be applied directly.
Amusing Injuries: In trying to imitate Lyra's bipedal abilities, Applejack falls flat on her butt, twice. The next day she's quite sore from her efforts, and trying her best to hide the fact.
And Show It to You: Toyed with. During the interrogation of Chrysalis, Luna warns that Ulquiorra will rip her spine out of her back and show it to her if she doesn't cooperate. Subverted as Ulquiorra points out that such a display is wasteful in nature, before elaborating on the physical impracticalities/impossibilities of such an act.
Anti-Hero: Ulquiorra without a doubt. He's not heroic in nature, but he does good deeds regardless. His primary motivation is to keep Celestia placated, which in turn keeps his hyde intact.
Armor-Piercing Attack: Ulquiorra punches the dragon in the chest with his fist. Once. The dragon collapses in pain and even bleeds as a result.
Except for when it's played straight. Case in point, Celestia.
Blood Magic: The Gran Rey Cero. Ulquiorra attempts to utilize this to guarantee the death of an invading dragon. However he never gets to actually use it as Celestia prevents its unleash.
Break Thecutie: This certainly seems to be the direction the story is taking with Twilight.
Twilight has nothing on what happened to Rainbow Dash in the last chapter.
Brick Joke: Way back in chapter 22, Ulquiorra warns Rainbow Dash if she keeps trying to punch him, her leg will break before his face. Fast forward to chapter 52 and guess what happens.
Bring Me My Brown Pants: Celestia nearly wets herself the first time she sees what Ulqiorra's Cero can really do. It doesn't help that she's facing him at the time, and is far closer to it than she wants to be.
Broke Your Arm Punching Out Cthulhu: Rainbow Dash makes two attempts at physically assaulting Ulquiorra during a state of intense emotional disturbance. The first time he stops her before she can hurt herself. The second time she puts so much effort into it she winds up breaking her leg in the first round.
Brutal Honesty: Ulquiorra plays with this, depending on who he's dealing with and how easily they could succeed in critically hurting him.
Bucket Booby-Trap: Happened to Ulquiorra twice, first time by Lilynette Gingerbuck, filled with blue paint, in Huecco Mundo.
The second by Pinkie, filled with confetti, in front of Sugarcube Corner.
Captain's Log: Chapter 35 is basically one long journal entry written by Ulquiorra about his observations of Equestria, and the ponies that inhabit it.
Chase Fight: Rainbow Dash flies after and tackles an escaping dragon. It works surprisingly well.
Celestia likes to believe herself to be this. She isn't, as Ulquiorra has no problem letting her know when he sees one of her attempts and refuses to take the bait.
When it comes to actual chess, Ulquiorra seems to qualify. Neither Twilight nor Spike proved capable of beating him despite their best efforts.
Choke Holds: Twice Ulquiorra has done this to Rainbow Dash in order to exert control over her. Justified in the fact that many chapters prior, he began familiarizing himself with pony anatomy, meaning he knew exactly what he was doing each time; meaning he knew exactly when to stop to avoid killing her.
Cliff Hanger: Used in fucking excess! The author uses cliffhanger endings in the story the same way others would use a comma.
Averted. Ulquiorra's Espada uniform isn't even singed when he faces the dragon.
In the changeling arc when there's the possibility of getting soaked in blood, he swaps out his jacket for a shirt made by Rarity.
Combat Pragmatist: Ulquiorra has this in spades. When a dragon takes up roost in the mountains (basically a repeat of "Dragonshy") his answer is the Cero the beast from Canterlot palace and be done with it.
Creepy Monotone: Ulquiorra invokes this all the freaking time! When he gets upset, his voice never increases in volume or pitch. This just serves to make the others all the more scared of him. When they're not trying to hug him that is.
Cry into Chest: This is Pinkie's response to learning of his past in Hueco Mundo. Considering Twilight is the one explaining his past, and attempting to portray him in a positive light, it's more understood than if he did the explaining.
Curb-Stomp Battle: Ulquiorra vs a hundred foot tall dragon. The dragon gets trashed with incredible ease.
Curse Cut Short: Spike interrupts Twilight before she can finish a rhyme for Zecora, describing her cart in a negative light.
David Versus Goliath: Ulquiorra, 5ft 6,1/2 in VS 2-3 story when crouchednote Ulquiorra describes it as "easily the size of a Gillian-class hollow", which is between 2-3 stories, dragon. Ulquiorra is able to beat it with his fists, only swinging his sword to defend the mane six from fire.
Dead Man Writing: Technically Ulquiorra's not alive, so when he's engaged in correspondence...
Decapitation Presentation: After he kills Celestia Ulquiorra laments that he and Chysalis could not do this, she suggests doing it to Luna.
Twilight's shield spells get used fairly frequently.
Celestia's is bigger.
Defiant to the End: During the dragon arc, when said dragon is bearing down on their position with a murderous intent, Twilight refuses to admit that they're screwed and tries to shoot the dragon down by herself. Cue Ulquiorra's Big Damn Heroes moment.
Destructive Saviour: Addressed. In the filler it's theorized that Ulquiorra is actively attempting to avert invoking this trope, as doing otherwise would conflict with the instructions Celestia has given him.
Dissonant Serenity: Ulquiorra. Always Ulquiorra. The others are in a near-constant state of panic from being attacked and threatened. Meanwhile Ulquiorra is calm, cool, collected, and ready to lay waste to whatever threat is present.
Do Not Go Gentle: Celestia's dead. Ulquiorra serves Chrysalis. The changelings have retaken all of Canterlot. Despite all of this, the Mane Six refuse to resign themselves to defeat.
Enhanced Interrogation Techniques: Ulquiorra doesn't use actual torture or violence to get information from the changeling. Instead uses psychological brutality to get what he wants, such as asking the changeling which of its limbs it wouldn't mind losing in comparison to any of its others.
Escort Mission: More or less what the entire dragon arc turned into for Ulquiorra.
Extreme Omnivore: Pinkie devours an entire cake and the serving tray it was sitting on in a single gulp.
Thrice Ulquiorra has performed his Solista Vista technique, which involves plucking out one of his eyes and crushing it to display specific memories.
Alluded to being the fate of the changeling that was interrogated.
Confirmed as the fate of Pipsqueak at the claws of the manticore attack on Ponyville.
Face-Heel Turn: Ulquiorra goes to the changeling hive with the intention of killing Chrysalis and every last changeling present. Instead he winds decides to serve her rather than remain loyal to Celestia, as Chrysalis possesses what he believes are superior personality traits.
Subverted. Ulquiorra's betrayal was all a part of Celestia's plan.
Fix Fic: The story has officially headed off into this territory by having Twilight apologize profusely to Rainbow Dash over the whole Mare Do Well incident.
Freudian Excuse: Played with. Chrysalis' excuse for her evil tactics is due to trying to keep her hive, her own children, from dying a painful death by starvation. However the validity of her claim is called into question when it's revealed she's suffering from schizophrenia and the changeling equivalent of mad cow disease.
Freudian Slip: Nonsexual example Ulquiorra will sometimes use equestrian words, equestrianisms? (IE; "anypony" instead of "anybody").
Friendless Background: Ulquiorra has this in spades. Surprisingly it's a trait shared with Pinkie Pie. But while Pinkie laments the fact, Ulquiorra is unfazed by such.
Good Is Not Nice: Ulquiorra will protect Twilight and the other Elements of Harmony, protecting all of Equestria in the process. However his interpretation of "protecting" is more along the lines of "kill any possible threats that might be encountered along the road."
Good Old Fisticuffs: During the filler fight against the Executioner from RE 5, Ulquiorra resorts to basic boxing moves to try and subdue his opponent, without causing excessive damage to Ponyville.
Ground Punch: Attempted by the dragon in an effort to pound Ulquiorra into the ground like a tent steak. Subverted when Ulquiorra displays his badassery by stopping the dragon's fist with one hand.
Half the Man He Used to Be: During the changeling arc, Ulquiorra completely cuts a changeling in half with a single stroke of his sword.
Hard Head: Rainbow Dash plays this trope straight to perform a rescue against the dragon. Justified as the story establishes her durability when using her Sonic Rainboom.
Hearing Voices: Rainbow starts to when her desire to kill Rarity starts to waver
Hero with Bad Publicity: Ulquiorra definitely qualifies. His brutality scares most ponies and sends them running in terror on sight. But Twilight and the others are at least trying to see to damage control for him.
Invulnerable Hooves Ulquiorra points out to Rainbow Dash that her hoof (and leg) will break long before his face will.
Infant Immortality: Brutally averted. Luna recounts how, while possessed as Nightmare Moon, she was forced to watch as the dark entity murdered and then devoured the souls of seventeen foals.
Cupid falls squarely on this trope.
Informed Ability: Ulquiorra states that Celestia and Luna's reiatsu levels are so intense they cause him physical pain to be in close proximity to. Twilight and the others don't seem to notice any such issue. He was lying about that too.
Intoxication Ensues: Ulquiorra's exposure to poison joke leaves him calmer and less of a hardass. The mane six decide to leave him this way for the party he's been forced to attend, both out of curiosity, and because after everything that's happened up to that point, they believe he could benefit from some good public relations.
I Work Alone: Ulquiorra prefers to deal with crises on his own, as he doesn't have to bother with the soft touch to keep the Mane Six safe.
Jack Bauer Interrogation Technique: Ulquiorra threatens to utilize this trope if necessary to get the information he wants. To elaborate, the Cuatro Espada first cuts off his own arm, just to prove that he's willing to do whatever's necessary. THEN he proceeds to threaten the changeling with limb amputation, forcefully tearing its wings off to see if they'll regrow, and peeling its skin right off its body to see if the pain will be enough to kill it.
Javelin Thrower: Ulquiorra in his release state exchanges his sword for Luz De La Luna, which he does throw.
Jaw Drop: Pinkie's reaction to Ulquiorra telling her he has no friends.
Jerkass Has a Point: Ulquiorra is incredibly blunt in his observation of things. But when he's right, he's absolutely right.
The Juggernaut: Ulquiorra qualifies with everything he's withstood so far. The only ones capable of stopping him are Celestia and Luna, and even that may not hold true anymore.
Kill the Cutie: The readers are lead to believe that Ulquiorra brutally murdered Fluttershy for no reason. It turns out to be a changeling in her place.
Knight in Sour Armor: Ulquiorra seems to be one. He doesn't agree with the outlook by Celestia and the other ponies; in fact he finds them quite moronic. But despite that fact, he's loyal to Celestia and will do as instructed, up until the point where he must deviate from one order to fulfill another order.
Lack of Empathy: Surprisingly Ulquiorra does NOT appear to fall victim to this trope.
Large Ham: Ulquiorra isn't it. He holds no belief that he's skilled in theatrics or acting, nor does he ever speak above his usual monotone range. And he's genuinely surprised when he has to perform and is taken seriously.
Twilight is in the process of forming her own, using the lightning spell as a starting point.
Living Lie Detector: Though Ulquiorra isn't technically alive he is able to tell when people/ponies are lying with his pesquisa.
Licked by the Dog: A significant number of the ponies that interact with Ulquiorra tend to invoke this trope. The majority of them simply don't understand his true nature, and the few that do simply don't seem to care.
Loyal Phlebotinum: The Elements of Harmony are confirmed as being this as of chapter 59. They're tied to the Mane Six, and can't be reassigned to more qualifies applicants with training in handling monsters and doomsday scenarios.
Ludicrous Gibs: Invoked in the two current filler chapters in all its gory goodness.
Jossed as it turns out Ulquiorra was just faking under orders from Celestia.
MindScrew: In a most literal fashion for Rainbow Dash.
Mood Whiplash: Deliberately invoked and without the least bit of warning. You go from laughing at a particularly funny exchange, to the emotional equivalent of smashing into a brick wall.
Mundane Object Amazement: The concept of a pen evokes this in Twilight, so much so she asked to go to Ulquiorra's world to get them.
Muscles Are Meaningless: Ulquiorra's first physical confrontation in Equestria is a giant dragon, stated as being around a hundred feet tall, and each of its fingers are at least twice as big around as his arms. The ponies assume that Ulquiorra is dead meat during the fight, and are genuinely shocked with disbelief as he proves to be anything but.
Mutilation Interrogation: Ulquiorra shows early on that he doesn't wish to be messed with. Rather than harm the changeling to make it talk, he cuts off his own arm in full view, before asking the changeling what it believes he'd do to one whose pain he can't feel.
My God Whathave I Done: This is pretty much Rainbow Dash's reaction after realizing that her memories of betrayal are false, and that she tried to kill Rarity for nothing.
Neck Lift: Ulquiorra performs this on Rainbow Dash while pretending to serve Chrysalis.
Neck Snap: Ulquiorra does this twice in the same chapter.
The Needs of the Many: Everyone who knows the element of loyalty has gone black and is tied to rainbow until she dies doesn't want Ulquiorra knowing that, because he may kill Rainbow under the trope idea.
Never Say "Die": Brutally averted. Mentions of death and dying are all over the place, especially with Ulquiorra explaining how his aspect of death is emptiness.
Nightmare Fuel Station Attendant: Ulquiorra. Always Ulquiorra. The horrors he's witnessed in Equestria leave him totally unfazed, while everyone else is terrified, sickened, or traumatized to some degree.
No Body Left Behind: Celestia ironically after being killed by Ulquiorra, turns to ash, they get better.
Experienced by Ulquiorra while interrogating Luna about her involving Twilight with his integration into Equestria.
More or less stated by Celestia when she realizes Ulquiorra's been able to use his release the entire time.
Only a Flesh Wound: Because Ulquiorra can regenerate damage done to his body, most injuries tend to be this.
Only Sane Man: All of the cast have moments of great intelligence. But Ulquiorra is the only one whose intelligent all of the time.
Out of the Inferno: Ulquiorra casually strolls through the dragon's stream of fire, performing an Unflinching Walk in the process, much to the bewilderment of everyone present and watching.
Overshadowed by Awesome: The Mane Six have gone from being the saviors of Equestria, to being rendered pretty much obsolete. He's faster, stronger, and smarter than all of them, has no hesitation about using whatever means deemed necessary to achieve a specific goal. He's a single individual capable of doing what six ponies and six magical objects have been required to do, and they all know it.
Pay Evil unto Evil: Played with. Ulquiorra's a remorseless killing machine, and has absolutely no problem with using torture or physical violence to get what he wants. However he reserves such tactics for dealing with genuine threats to Equestria's safety.
Pint Sized Power House: Ulquiorra indirectly references this when he confirms he's the smallest in size to hold the title of Espada. This is later emphasized when Ulquiorra faces down a dragon by himself, and the dragon can't do squat to hurt him.
Power Gives You Wings: Ulquiorra's released state. Not that he needs them, as he can fly and airwalk with ease.
Power Incontinence: The latest chapter presents us with the theory that Celestia is so powerful in nature, that she can't control the full extent of her own strength, and instead can only show a tiny portion of what she can do.
Real Men Hate Affection: Played with. Being the primary male of the story, Ulquiorra qualifies. However he has no particular disdain for affection, and is simply disinterested in the basic idea. He even states that because of his nature it's simply not something he's capable of.
Red Eyes, Take Warning: Heavily subverted. Twilight suffers a hemorrhage in one of her eyes due to excessive concentration and magical practice, resulting in the white of her eye turning completely blood red. Ulquiorra explains that the same result could be had from sneezing or coughing too hard, due to the fragile nature of blood vessels in the eyes. Scootaloo thinks it's cool nonetheless.
Redundant Rescue: Rainbow Dash tries to rescue Ulquiorra from the dragon as it's flying off with him in tow. Ulquiorra later proves he had no need of being rescued in the first place, and instead was looking out for their wellbeing, by putting distance between them and the dragon.
Restraining Bolt: Celestia seals Ulquiorra's released state to make him less of a threat to her subjects. For the most of the story we're lead to believe that she was successful in trapping him in his base form. And then Ulquiorra goes and shows that he's been playing her the entire time.
Shock and Awe: Twilight is attempting to work her way towards this.
Shovel Strike: During the filler chapters, Spike acquires a shovel as his weapon.
Shipper on Deck: Ulquiorra accuses Luna of being this asking if she was trying to pair Twilight with him early on, this pushes her Berserk Button.
Ship Tease: Twilight wakes up during a slumber party to find Rainbow Dash snuggling her like a teddy bear. Rainbow Dash doesn't help the matters any by commenting that Twilight is plush and more comfortable than her own pillow.
Sickening Crunch: Utilized several times to indicate Ulquiorra's badass strength is not to be underestimated. Usually accompanied by sompony wincing and stating "that had to hurt."
Sleep Cute: Toyed with. While Ulquiorra is demonstrating the fact he doesn't need sleep during his studying, Twilight eventually succumbs and sleeps the night away, using his leg/knee as a pillow. He does nothing to disturb her rest and simply ignores her.
Sleeves Are for Wimps: Ulquiorra wears a sleeveless shirt during the changeling arc, and that's when action really starts picking up.
Sneeze Cut: Included due to Rule of Funny. Made all the funnier when Luna's sneeze can blow over those in attendance.
Sociopathic Hero: Ulquiorra has no qualms with torturing and killing in order to assist protecting Equestria from harm.
Stress Vomit: Experienced by Twilight after Ulquiorra forces her to serve as an Unwitting Pawn in killing the changelings infesting Ponyville. Rainbow Dash's commentary of how bad dead changelings smell probably didn't help any.
Rainbow Dash succumbs to this as well in the latest chapter.
Sucking-In Lines: Described whenever Ulquiorra's making use of his Cero to inspire a visual representation of someone witnessing his technique from the wrong end.
Tap on the Head: Toyed with. It's been shown that hitting a unicorn or changeling on their horn will temporarily disable their magic and leave them in pain, but it won't render them unconscious.
Was used by Ulquiorra to put a dying foal out of its misery.
Rainbow Dash attempts to invoke this on herself with a tree, but her Hard Head won't let her succeed in knocking herself out.
Played straight with a changeling spy. But the tap consisted more of a roundhouse kick to the head from Ulquiorra.
TearJerker: The entire Cupid ordeal. How do you not cry when reading about a child slowly dying from being poisoned?
Prior to this would be Celestia's supposed death, with neither the characters nor the readers knowing for several chapters whether or not she's actually dead. The Tear Jerker aspect comes from the description from Twilight's point of view, and the accompanying music.
Unwanted Rescue: During the dragon arc Ulquiorra is "captured" and the dragon takes off. Fearing the worst Rainbow Dash takes off to rescue him. Ulquiorra later informs them it was his intention to get the dragon away from the cave to avoid unnecessary casualties.
Use Your Head: Rainbow Dash does this by tackling a dragon and slamming her head into its ribs.
Villain Protagonist: Ulquiorra without a doubt. A villain in his own dimension, seen as a hero in Equestria, and rescuer to the mane six three times already.
Vomit Indiscretion Shot: Numerous times by numerous characters. Lampshaded by Ulquiorra when he notes how ponies aren't even supposed to be able to vomit.
Wham Episode: To say multiple chapters qualify is an understatement. With all the recent turns, between betrayal, character death, questionable moral decisions, and conspiracy theories running rampant, the status quo that was the show is unlikely to ever return.
What the Hell, Hero?: Ulquiorra calls out Celestia for sending Twilight and the others to deal with a vicious dragon that nearly killed them.
Ulquiorra later delivers such a speech to the Mane Six after finding out they decided to leave him doped up on poison joke.
Wrench Whack: During the filler Twilight makes use of a wrench for pounding on enemies when escape isn't an option.
Your Approval Fills Me with Shame: Ulquiorra compliments the Mane Six on having the guile to actually take advantage of his impaired state and using it to their advantage. This upsets them more than being berated for their actions.