- In Alex, the titular antagonist provokes her opponent, Marceline, to spit at her coat, the same way she spit at Princess Bubblegum's jacket at "What Was Missing". When she does it, the Witch uses a magic spell to put it at her gray top instead. Much after that, she has Finn and some wolves attacking her, the same way she did it to the former in "Go With Me".
Avatar: The Last Airbender
- In The New Look Series: Ben's New Look, Ben turns into Grey Matter to peep on a woman, but due to a rat in the vents, he ends up getting caught and Gwen decides to punish him by dressing him as a girl.
- In Winter War, the Barragan Fragment's power to age things to dust extends to its blood. The fight is going badly when Isane guesses that it might be vulnerable to its own power. At her suggestion, Ukitake and Soi Fong put its blood on their swords before attacking again. Luckily for them, it works.
Calvin and Hobbes
- The Calvinverse villain Rupert Chill usually disguises himself as a human criminal of the same name whenever he'd arrive on Earth. ("The Five Calvins" implies this was intentional on alien!Rupert's part.) This comes back to bite him at the end of Calvin and Hobbes: The Series' Season 5 premiere when Calvin arranges for Rupert to be arrested by police while wearing his human disguise, and they dismiss his frantic attempts to tell them who he really is as insanity.
- In The Last Spartan, Garrus kills Dr. Saleon by locking him in a test chamber with a Flood infection form, something Saleon had done to at least two other test subjects already.
- Around the climax of My Little Avengers, this happens twice. First, when it appears as though the villains have won, Trixie attempts to betray Loki, only for him to turn her own magic back on her. She survives and escapes, but is left horribly scarred. Later, during Loki and Thor's Final Battle, Loki pulls an I Surrender, Suckers, but Thor anticipates it and redirects Loki's own Soul Seal spell back on him, killing him.
- The Stars Will Aid Their Escape: The Big Bad Herald ends up being defeated by several of his own actions throughout the story. Throwing the jar containing the CMC's souls over the waterfall not only allows them to be retrieved, but takes away the one thing that might have stopped Pinkie Pie from banishing him to outside of reality the same way he did it to the Princesses. That action in and of itself ends up costing him, as it allows them to fight him at full strength without having to worry about hurting their subjects as they would in Equestria, allowing them to begin winning the fight. This also buys the Mane Six enough time to kill the Dark Young and stop Shub-Niggurath's summoning.
- Equestria Girls: A Fairly Odd Friendship: Sunset's bullying of Moondancer comes back to bite her HARD. The Dazzlings are able to goad Moondancer into providing evidence of Sunset's past misdeeds, which they can use to claim to Timmy that Sunset is still an evil bully.
- Time Lords and Terror: Hydia, who spent the whole story trying to release the S'Muz, ends up being its first victim. Also, the SMuz itself is defeated when the ponies use their Elements of Harmony to absorb both the PKE it stole and the PKE that makes up its body and disperse it into Equestria.
- In Origins, a Mass Effect/Star Wars/Borderlands/Halo Massive Multiplayer Crossover, the Republic Intelligence Service tries to capture a Force-sensitive Siren. However, their attack only makes the target stronger. Naturally, this target is not happy. Ass-kicking ensues.
- The Force-sensitive Siren in general was this for those who made it. Through some Loophole Abuse, these creators hoped to alleviate themselves of duties they found boring. Their creation saw right through their wordplay and decided to apply the consequences demanded by the law for those who sought to undermine it. Subverted in that creators eventually subdued their creation, at least until the events of Fractured set Sarah free...
- Several villains in Children of Time. Notably Dalek Caan and Colonel Marshall in "The Manhattan Conspiracy"... Caan wants to study a Time Lord's regenerative use of the Time Vortex? Give 'im the Time Vortex, then... And Marshall is quite taken with the power of the atomic bomb — the two Time Lords of the story plan accordingly.
- The Princess of Themyscira: Ares uses the Alicorn Amulet to open a portal to Tartarus and unleash the army of demons there in order to start a Forever War. When the Amulet is destroyed by Diana, the portal closes, and Ares' attempts at keeping it open only results in him getting sucked in and trapped inside.
- In Harry Potter and the Wand of Uru, Flint's decision to have Wood injured badly enough to be removed from the game comes back to bite him when the replacement Keeper (Hermione) proves to be just as good and have better gear. Then she and Harry knock the opposing Seeker out of the game, making it impossible for Slytherin to not lose horribly since the only way to forfeit is for both captains to agree and Wood's still in the hospital wing.
- The Equestrian Wind Mage: At the end of Season 2, when Demise is resurrected out of Ganondorf's body, he absorbs the Triforce of Power. However, the Elements of Harmony communicate with it, and turn it against him. The Elements and Triforce then work together to strike him down and render him Deader Than Dead.
- Thousand Shinji has these examples:
- In chapter 8, wanting to pay Rei back for ruining his latest "Annoy Asuka" ploy, Shinji nudges Asuka to take Rei to a shopping trip. Asuka bites the bait... but then she announces that he would carry their shopping bags.
The look on Shinjis face would warm both Rei and Asuka for a long time as he was most definitely hoisted by his own petard.
- In chapter 14, Shinji realizes his planning and scheming has backfired completely.
Everything tied back to Shinjis own scheming. He had been snared in a web of his own making. The phrase hoisted by his own petard didnt even begin to cover this sort of thing.
- Initially, Shinji wanted to get back at his father for abandoning him, but after a while he cast his planned revenge aside because he had found a real family. Then Gendo hurt his family to try to keep him under control. So Shinji hurt him back.
- In Children of an Elder God, Nylarathotep tried to drive Asuka to despair. He was successful... to the point that she decided to burn everything down, starting with him.
- Metroid: Kamen Rider Generations provides us a frighteningly karmic example: In one chapter, the impostor Makoto Fukami shoots Mitsuzane from behind, not once, but twice! Which is a callback from episode 26 of Kamen Rider Gaim where he shoots Kouta in the back.
- In One Flew into the Cuckoos' Nest, a jealous Quire tries to psychically lobotomize Harry, only to be turned into a drooling vegetable when Harry's own mutant ability reflects the attack with increased force.
- Psimon in We Are Legion wipes Legion's memories entirely when they meet. Then the swarm of bugs Legion previously controlled go berserk and act on instinct, eating every living being in the camp, including Psimon himself.
- The Tick vs... MY HERO ACADEMIA! had the battle between Eraserhead and the titular Tick be decided when Eraserhead bound Tick with his capture scarf, only to find it just means he made it easier for the invulnerable, superstrong crazy person to bash him around.
- In Amazing Fantasy, Rocker Racer Number One spends most of his villainous debut stealing from others and knocking out the opposition with his rocket-powered glove. Peter goads him into trying to use it on him, only for Peter to dodge at the last second. Number One's hand goes right through a wall behind Peter, leaving the upstart Villain's fingers horribly mangled.
- In the Harry Potter/A Nightmare on Elm Street crossover We Are Nothing, Snape's torment of Harry during their Occlumency 'lessons' causes so much damage to Harry's mental shields that he even breaks down the standard barriers everyone naturally possesses, creating an opportunity for Freddy Krueger to attack Hogwarts (albeit 'limited' to attacking anyone that Harry was already angry at in some way), with Snape being one of Krueger's first victims.
- In Infinity Crisis, Thor and Jane destroy Hela by attacking her with Stormbreaker and Mjolnir respectively; applies as Mjolnir was only a factor after Hela asked Thanos to recreate it for her, only for the hammer to 'reject' Hela due to the new worthiness enchantment while permitting Jane to wield it instead.
- In eXtra power twin, after Fudge is voted out of office, he attempts to use the Imperius Curse on Scrimgeour to try and maintain some of his old authority, only to be automatically arrested and sent to Azkaban under the rules Fudge himself created about harsher sentences for those who attempt to attack the Minister of Magic.
- In the Harry Potter/Fate/stay night crossover Harry and the Botched Cult Ritual, first, the apparition of Tom Riddle from his diary decides he doesn't need to follow orders from the original Voldemort and attacks him. Since they have the same powers and can speak Parseltongue, they command the Basilisk to kill the other, so the Basilisk is torn on who to obey. Then Rider and Avenger show up. Since they are both Medusa, they can speak Parseltongue and have more authority over snakes than even the Heir of Slytherin, and command the Basilisk to kill both Voldemort and Riddle, which the Basilisk happily obeys.
- Happens a couple times in With Pearl and Ruby Glowing:
- Si and Am find that it's easy to get caught in a lie when that lie is that the resident Sweet Polly Oliver got you pregnant.
- As some of the villains found out, if you're a Dirty Cop with a penchant for Prison Rape, maybe make sure that your latest victim isn't the police chief's nephew.
- Batman Beyond Revisited: If the sadistic Chainsaw isn't burned to death by his own lighter, he's killed by his WMD exploding. An explosion caused by his own lighter.
- With this Ring... (Green Lantern): As using his telekinesis to crush Hal Jordan, Hammond taunts telepathically the Green Lantern, giving Hal the chance to send his own mental attack through the opened mind-link.
- In Hellsister Trilogy, Mordru is more than powerful enough to wipe out the Legion of Super-Heroes single-handedly. But he isn't satisfied with his already vasts levels of power so he travels to the actual Hell to make himself one with the essence of Evil. As attempting the merge, though, he put himself in a vulnerable position which gave Colossal Boy and Supergirl the opportunity to destroy him.
- In Daughter of Fire and Steel, General Zod's decisions consistently ruin his chances to achieve his goals. He gets Lois kidnapped, even though Kara points out such an action will make Kal-El to not trust them; and he turns down Kara's suggestion to convince Superman into helping them look for another suitable world, even though she had already talked her cousin into it, which makes Kara help Superman to take him down.
Disney Animated Canon
- In Crowns of the Kingdom, Maleficent falls victim to her own time-twisting spell due to Sleeping Beauty not being made until four years after Disneyland was built.
- In Coco fanfic "Los Dos Ernestos", Ernesto's plan to kill Hector backfires because he mistakenly drinks from the poisoned glass and gives Hector the other one.
- In Children of the Atom, The Super Mutants stockpile lime to smoke Rivet City's defenders out. Jason uses it on its creators.
- In Nerve Damage, after Shirou breaks the Heaven's Feel, Zouken forces Sakura to summon another servant besides Rider, even over her desperate desire not to fight Shirou. Cue her summoning an Assassin with just the power set to kill him off for real while leaving Sakura alive, who disdains the Grail and all who seek it as blasphemers, and who sees Zouken as just the type of monster she was designed to fight.
- Harry Crow: Lucius Malfoy has 24 hours to withdraw the contents of his Gringotts vaults and anything left behind after then will be unreachable until his son becomes of age. Lucius is forced to miss the deadline because the Ministry has him under arrest and his wife can't do it for him because he never gave her permission to withdraw more than one hundred thousand Galleons per day. Later he gets another heaping dose when he does send his wife for those hundred thousand and she offers the money to Fudge to have the charges thrown out. Fudge promptly charges him with a bribery attempt and uses the cash as evidence.
- In A Lion and His Cub Umbridge sets off an explosion in the Great Hall to try to convince a social worker that Harry's baby daughter would be safer in Ministry custody. When Harry is seriously injured while protecting her, the social worker approves his guardianship on the grounds that any good parent would "set aside their entire being for the child."
- In The Widower Maker, Harry uses a poorly-worded Marriage Law that forces half-bloods and Muggleborns to marry into Pureblood families (and be turned into all but slaves) to go scot free with killing all the women he is forced to marry and their families. And then uses that to ensure the law is repealed.
- An excellent one from the oneshot Community Service: Voldemort's curse on the Hogwarts Defense Against the Dark Arts position really comes back to bite him, when Dumbledore gets the Eureka Moment to allow all accused Death Eaters to get off with just community service. Specifically, two years mandated community service as DADA professor. It's so successful that by the time Voldemort gets his body back, Wormtail is the only free Death Eater left.
- In The Child of Azkaban, Voldemort and Quirrel bring Harry down into the Chamber of Secrets to be fed to the Basilisk. The Basilisk becomes enraged when he finds out that he was trying to feed him a parselmouth and that Quirrel himself was not a speaker, causing the enraged snake to devour Quirrel and become a protector to Harry.
- The Rigel Black Chronicles: After Harry beats Peter Pettigrew, he's then finished off by the Dominion Jewel.
Hetalia: Axis Powers
- In Seven Little Killers, Canada has been dumping the bodies of the people America allows to be killed in the river. Unfortunately for him, he turns out to be one of the people America decides to let die. Guess where he winds up drowning?
- The New Adventures of Invader Zim:
- Season 2:
- At one point in Episode 4, Tak ends up having to fight the same Ham Demon she once unleashed on Zim.
- In Episode 5, Quis' plan is to set up Dib to look like he was running a "Scooby-Doo" Hoax and get him kicked out of the SEN for fraud. Instead, events play out so that Quis is exposed, with him being the one kicked out.
- In the third entry of the non-canon Mature Edition anthology, this happens to both Tak and Gaz. The rocket Tak intends to blow up the nudist commune with ends up incinerating her clothes instead, while Gaz's attempt to take money from her father's safe leads to her being tossed naked out of the house by his security system, where she's arrested by the police she called on Dib earlier.
Jackie Chan Adventures
- Queen of All Oni: Jade has Verde construct her an enchanted dog carrier to contain the Oni-masked Scruffy while speaking with the Bat-General; Tohru later uses this dog carrier to capture her (her minions save her, however). On top of that, Tohru reverse-engineers the magic involved to create sutra scrolls capable to restraining Oni.
- Later, when Lung, Daolon Wong's former apprentice, captures Jade and tries to bind her and thus her Shadowkhan to his will (which also counts as a Critical Research Failure, since Ikazuki's curse only allows her to summon Left and Right), his defenses are no match for her servants and he is Killed Off for Real for torturing Jade and nearly killing her. No tears were shed.
- Shadows Awakening:
- Turns out Tarakudo was imprisoned in the Shadow Realm because when he fled there to hide the mask made to seal him, his enemies just sealed him inside.
- The Queen is defeated during the Final Battle when Uncle and Tohru invoke a Super-Power Meltdown via her unbalanced chi, which she herself unbalanced by going One-Winged Angel.
- Infinity: Lindy spends most of chapter 25 getting smacked around by Precia. Near the end, she reveals that she's been sealing Precia's magic the whole time, and electrocutes her with all the magic Precia used during the fight.
- Dial: The algorithm that Arnim Zola created to track down anyone anywhere in the world for HYDRA's benefit is taken by Jury Rigg!Dial and repurposed into an algorithm to instead identify all HYDRA agents worldwide, allowing SHIELD to excise them precisely.
- Fire!: During one battle, Doctor Doom seemingly blasts the Fantastic Four into pieces, unaware that Franklin Richards is watching the battle via the Fantasticar camera. Franklin snaps utterly and uses his reality-warping powers to turn Doom into a literal bloody pulp.
- Adrien takes Lila down with grace and charm in best (fake) smile by the simple expedient of escorting her to Fashion Week and "excitedly" dragging her around to see the many famous people she claims connections with, acting as if he believes her stories of having worked with them, saved their kittens, etc — and capturing their baffled denials on his social media feeds. Bonus points for having both Jagged Stone and Ladybug politely but unfavorably contrast her behavior with Marinette's, sinking the boot in to Lila's downfall amongst their class. And when she furiously confronts Adrien later, he captures her angry admissions on video.
- In LadyBugOut, Lila naturally pretends to be helping Ladybug maintain the titular blog. When Marinette posts a video where she "interviews" her alter ego in The Interview Ruse, Lila accuses them of trying to make her look bad... but Ivan points out that Marinette wasn't around whenever Lila bragged about her involvement. Her panicked attempts to blame somebody else only manage to further rile up her classmates, and when she attempts to invoke Exact Words by claiming that she never actually said she was working on the blog, only that Ladybug had asked her for help, she's called out on it. This leads to everyone but Alya, Nino and Adrien turning on her after realizing that she'd been lying the whole time, losing all her influence.
- All's Fair in Love and War (And Turnabout's Fair Play): All Adrien has to do in order to set Lila's downfall in motion is give an interview where he admits that he's being terrorized by a stalker at his school. Though he doesn't name names, he truthfully lists off several of the things she's done to him, such as forcibly kissing him while staging a selfie and attempting to kill him while akumatized.
- In to lose someone, Lila convinces the class to betray Marinette by tearing up her sketchbook. When Marinette arrives and sees the carnage, rather than breaking down, she just sighs and snaps a picture for evidence. Then she calmly explains to them that she has multiple sketchbooks, and that the one they just ruined was full of projects she'd been working on for them... meaning that they aren't getting those things anymore.
- In Jerk In Sheep's Clothing, while the Lila situation is not as bad here as it usually is in most salt fics, it is tense enough between Marinette and the class to have her fall victim to the charms of the new Bitch in Sheep's Clothing, Henri LeRoi. While the class is somewhat cold and indifferent to Marinette because of Lila, Henri showers her with unquestionable affection and loyalty. This makes Marinette feel as if Henri is a better, more reliable and trustworthy ally than her class. So, naturally, when Henri starts bullying the class behind her back and lying to her about it, she believes him over the class and shuns her friends for picking on him.
- Henri also uses Adriens advice about the high road against him to paint him as a Manipulative Bastard to Marinette, insisting that he asked her not to expose Lila for his own comfort and convenience rather than a desire to keep the peace, that Adrien sees fit to let his friends and teachers get led on by Lilas lies as long as he himself isnt getting hurt.
- The One to Make It Stay:
- Lila's claims to have worked with Prince Ali work against her in this 'verse, thanks to Rose having his contact information and texting him, eager to learn more.
- Lila also unintentionally undermines her grasp on Alya, one of her most fervent defenders, by secretly messing with Alya's phone during one of their outings. By turning off her notifications, she causes her to miss some important calls from her family, getting her into serious trouble... and her subsequent realization that Lila was the only one who could have done so goes a long way towards convincing her that she's a Bitch in Sheep's Clothing.
- Chat Noir's decision to refuse to help Ladybug fight akuma until she agrees to start dating him leads her to rely upon temporary heroes like Viperion more and more. The disrespect he then shows towards these other heroes drives a deeper wedge between them.
- Ultimately, Adrien/Chat Noir's entitled attitude towards Ladybug and staunch belief that he can harass her into giving in to his romantic advances is directly responsible for his downfall: Miracle Queen disguises herself as Ladybug and offers a false confession. Despite her acting nothing like the real Ladybug, Chat Noir eagerly accepts the idea that he's finally browbeat her into 'accepting his love', even ordering her to 'prove it' by kissing him. This gives her an opening to slip his ring right off his finger, passing it on to Hawkmoth.
- This is central to the plot of BURN THE WITCH, as Adrien convinced Marinette to stop trying so hard to expose Lila by reasoning that her lies would eventually catch up to her like this. While this proves to be true, the fic takes a sledgehammer to his logic by illustrating how he didn't consider that she would continue manipulating everyone until she gets caught out. Rose pays the price, as Lila exploits her efforts to help out her non-existent charity, lining her pockets with all the cash she and others are so generously donating to her cause.
- Lila's exposure happens in part because she used a good chunk of her ill-gotten funds on filling out her wardrobe with the latest, most expensive trends. Once Rose confronts her and starts asking where the money's gone, Chloe cheerfully contributes by pointing out to her classmates just what she's wearing.
- Her attempt to repay Marinette's efforts to protect her from the mob by sacrificing her as a distraction completely backfires, as it only draws Witch Hunter's attention to her and ruins her Paper-Thin Disguise.
- Then she takes shelter with a family willing to hide her from the masses, only to shoot herself in the foot by trying to Maintain the Lie of painting Marinette as her bully. Unaware that she's speaking to the mother and brother of one of her classmates, and that neither is willing to buy her claims — even when she doubles down on them, unwilling to admit the truth.
- To top it all off, Hawkmoth shatters her illusions that he won't let her come to any real harm by delivering a Breaking Speech through Witch Hunter, spelling out how she isn't useful any longer now that all of Paris knows her true nature. He finishes off his speech by sarcastically calling her his 'friend', causing her to realize that he just played her the same way she played all of her 'friends' - using her as an Unwitting Pawn while she was none the wiser.
- In this post, Lila spikes Marinette's drink, hoping she'll embarrass herself while drunk. Marinette proceeds to topple Lila's entire mini empire at Dupont courtesy of her lacking any filter or inhibitions.
- One Step Backwards And Three Forwards has this as a running theme: though Hawkmoth triumphed in the original world, the new reality shaped by the Wishes he and his supporters made (and the furious Tikki and Plagg) ensures that their decisions come back to haunt them:
- Alya wished to become a great Intrepid Reporter, only to learn the downsides of Going for the Big Scoop. Especially without a superhero like Ladybug around to bail her out when she gets in over her head, or the protection of the Fox after Marinette switches it out for a decoy.
- After Dame Papillion's debut, Lila 'subtly hints' to Adrien that she's the secretive superheroine, claiming credit for her good deeds. This bites her hard once Gabriel learns about the new hero and is convinced that Lila must have stolen the Butterfly from him.
- Lila snaps a photo of Felix comforting Rose in order to try and make him look like a two-timer. Not only does Felix counter the rumors with Brutal Honesty, she's quickly outed as the anonymous poster 'Volpina', with Juleka spinning it around to look like she was jealous of her relationship with Rose.
My Hero Academia
- Mastermind: Strategist for Hire: During his fight against Overhaul, Mastermind stabs him with a knife coated in his own Quirk erasing drug, rendering him Quirkless and ultimately leading to his death.
- Monoma suffers this twice during the joint training exercises between Class 1-A and 1-B in Deku? I think he's some pro...:
- When Tokoyami picks Monoma, Monoma tries to copy his Quirk, only for his incarnation of Dark Shadow to buck and attack everyone indiscriminately (including Monoma himself) like a wild animal. Since Tokoyami's Shadow is much more tame and obedient, it pins Monoma down and wins him the match.
- Monoma picks Izuku as his opponent when he discovers that he was the fifth recommendation student, thinking that he must have a powerful Quirk that he intends to copy. Izuku offers him a chance to copy someone else's Quirk before the fight, but Monoma declines, thinking he is being boastful. He manages to reach Deku and touches him, but his recklessness and the shock of realizing Izuku is Quirkless leave him wide open and unable to fight back when Izuku just pins him to the ground.
- In Heaven's Eye, Monoma copies Aoyama's navel laser during the Sports Festival. Without Aoyama's special belt, Monoma only manages a cloud like emission rather than a focused laser. When he tries to force it for several seconds, the backlash causes Monoma to soil himself.
- Erased Potential: During the USJ assault, Shigaraki decides to taunt Izuku by disintegrating his equipment. Specifically, he targets his eskrima rods. This turns out to have been a phenomenally bad idea, as the disintegration causes them to blow up in his hands.
- Sleeper Hit AU: Bakugou's utter refusal to see anything wrong with how he treated Midoriya bites him HARD during their climatic confrontation.
- Firstly, there's the fact that he's crashing his meet-up with Kirishima and a handful of others in the first place. Bakugou certainly wasn't invited to Dagobah Beach, and shows up entirely of his own accord — and unlike the others, who came in casual wear, he's in full hero attire, hinting at his hostile intentions.
- He then goes on a blistering Motive Rant where he blames Deku for all his problems, even declaring that he wishes Izuku had broken after being expelled and taken his advice... because while he may not have meant it at the time, now he sincerely wishes that Midoriya had killed himself back then and stopped 'getting in his way'.
- Then he attacks him, bringing the full force of his powers against his fellow Pro — and this, along with the rest of their confrontation, is all caught on video thanks to Aizawa, ensuring that he won't be able to escape the consequences of his actions.
- On top of all of this, the fact that he openly admits to bullying Izuku without the slightest hint of remorse or shame costs him Kirishima's regard, as he drops his 'Bakubro' nickname and reminds him of Shigaraki's declaration that he was more villain than hero.
My Little Pony: Friendship Is Magic
- Ancient Sins: the entire hidden plan of Dante's is for his plans to fail, since he wants the heroes to become strong enough to defeat him for good, but really to purge the true villain who's been manipulating him from the beginning. After his final defeat, he pretends he was the true villain and eventually joins the heroes, but later reveals his secret.
- My Little Mages: The Nightmare's Return: The Diamond Dogs chase the girls into an Ursa Minor's cave, hoping they'll enrage it and it'll kill them. Fluttershy manages to calm it down, and then sic it on the dogs.
- Loved and Lost:
- Jewelius tries to escape in his chariot, but fails because the wedding cake toppers he gave Spike to torment the exiled baby dragon are jammed into a wheel by Spike, ejecting Jewelius from the chariot.
- The same Changelings whom Jewelius betrayed and, following their escape, foolishly ignored in favor of pursuing the heroes return the favor by eating Jewelius alive.
- Happens to a nameless Griffin Mook in Ace Combat: The Equestrian War. When he tries to bomb Stalliongrad, the pegasi manage to send the bomb he drops back at him, coupled with Derpy knocking the soldier toward the incoming bomb that went off.
- In the Pony POV Series, at the climax of the Dark World Series, this is how Nightmare Eclipse/Paradox is ultimately defeated. Twilight copies her time magic and uses it to take advantage of how badly Paradox's "Groundhog Day" Loop plan has screwed up the timeline to summon the G1, G2, G3, and (pre-Reign of Chaos) G4 Mane Casts in order to use their combined Elements of Harmony to finally defeat Paradox and her Psycho Rangers.
- She also gets a double dose because her plan of merging with every version of Nightmare Purgatory the moment of their birth results in all the alternate Nightmare Eclipses being linked to her, so her defeat ends up taking all of them with her.
- Earlier in Dark World, Rancor showed awareness of this trope and avoided it as best she could, refusing to use her Concept Killing Spear in battle with the Elements of Harmony, and later destroys it after using it to steal Destruction's power from Discord, so no one can ever use it against her. That said, her insistence on fighting Dark World!Spike backfires when he figures out how to get around her immunity to violence to actually hurt her.
- The Dazzlings run on The Power of Hate. For this reason, when they are frozen in Windigo ice, their own power strengthens the ice and stops it from melting.
- In The Rise of Darth Vulcan, Big Boss, a dragon who obtained a massive hoard of gems by enslaving and abusing the Diamond Dogs, is defeated when the title character uses his magic to form talons from the gems and metals of that very hoard , grabs him, and smashes him around repeatedly with them. And then, Vulcan seals his mouth and nostrils shut with that treasure, causing the backfire that blows Big Boss' head off.
- The barrier in The Conversion Bureau: The Other Side of the Spectrum does this to the Solar Empire ponies. While it's their main trump card (as they'd have been destroyed within days without it), it's made abundantly clear that the Barrier is, for lack of a better term, screwing them over. Since it destroys everything made by humans, like agriculture, infrastructure, buildings and the information on how to make those things, the TCB!ponies that are trying to colonize earth are forced to build everything from scratch (for example, they can't use human steel to make railroads since that gets destroyed) while also diverting their resources to the war. And thanks to the massive influx of newfoals, production of food (and virtually everything else) is at an all time low.
- Also in this TCB-verse, unicorns can turn human firearms against their shooters. So the PHL puts runes on their guns to make trying... painful.
- The Fujin missile which took down the Great Equestrian airship was able to do so by absorbing all the magic the TCB!ponies used in a failed attempt to stop it.
- TCB!Cloudchaser was hit by a poison that works like this — it absorbs any magic in the area and kills the person or pony slowly. Thankfully, Discord saves the day.
- Alicornundrum: Duke Blueblood is ultimately brought down when Nyx and her friends break into his home and find proof of his conspiracy against the throne, which is enough to horrify his son Prince Blueblood enough to help expose him. And all this only happened because the Duke spread photoshopped pictures of Nyx and her friends in lewd conditions as part of a petty smear campaign.
- The Pieces Lie Where They Fell: If Sunset Shimmer had waited for the dance, she could have gotten the crown easily. Instead, she has Snips and Snails steal it early, is caught in the act, and banned from the dance.
- During the fiance arc of A Growing Affection, Hinata's grandfather Hyouta uses the Hyuga Clan's laws and traditions to try to break up Naruto and Hinata. When he thinks he has won, he says the wrong thing, and those same laws get turned on him. The result is Hyouta getting curb-stomped by Naruto, and then losing his power and status.
- Escape From The Hokage's Hat: The Third Hokage's law about not telling anyone Naruto has the Kyuubi sealed in him. The parents of Konoha used it to turn him into a pariah. When Ino and Choji actually call their parents out on it and ask WHY they did it, the law prevents them from telling them the real reason and they end up looking like hateful pricks to an orphan.
- Shikamaru's match with Tenten goes this way in A Drop of Poison. Tenten immediately opens with her best technique which involves throwing massive numbers of weapons at her enemy then, if they dodge, pulling the weapons back with the wires attached to them and throwing again. Unfortunately for her, each of those wires casts a shadow, which leads directly to her own shadow. As Shikamaru explained, once that happened, he just needed to grab one of her weapons to make her bring one to her throat. It didn't help that because she leaps high into the air, she injures her legs upon landing since she can only mimic Shikamaru's movements.
- In Vapors Deidara accidentally drops some of his explosive clay on himself when Aiko closes the distance before he can blink. When he detonates all of his clay as a distraction to escape, the bit he'd dropped in his own lap blows his leg half-off.
Neon Genesis Evangelion
- Advice and Trust: Ritsuko orders Shinji and Asuka to start spending more time with Rei, hoping that they help Rei to raise her synch scores. However the result is that Shinji and Asuka are learning things about Rei that neither Ritsuko nor Gendo want them knowing. Even worse, they have helped to Rei to become self-reliant and have bonded with her, and now she questions Gendo's will, trusts Shinji and Asuka more than she trusts him, and is willing to disobey his orders.
- Neon Genesis Evangelion: Genocide: Kluge forms an alliance with the Emerald Tablet, a rogue A.I. to help him and SEELE bring down NERV and cause Instrumentality. After getting inside the Geofront with Kluge's help, the Tablet quickly concludes that Kluge has outlived his usefulness and kills him.
- Subverted in Pyrrha(c) Victory. One of the characters buys the equivalent of a love potion, intending to use it on the boy she likes...and eventually decides not to, reasoning that it would be wrong, and that it probably wouldn't work anyway. Despite this, she trips and accidentally doses herself with it. Moral of the story? Illegal substances are nobody's friend.
- Mortality: Most likely Moran gets killed by either Holmes or Watson after Moran tries to kill the former.
- In A Night in the Sculpture Garden, Irene Adler's plan to blackmail Molly Hooper into helping her backfires when Molly refuses and leaves her stuck as a statue.
- In Supreme Chancellor Obi-Wan Kenobi, Palpatine falsifying scores of Jedi mission briefings to keep Obi-Wan away from Anakin as much as possible (to further cement his own hold over the boy) results in the leaders of every planet Obi-Wan was sent to remembering how he saved them. Dozens of them band together to call for a vote of No Confidence in Palpatine and a second vote to have Obi-Wan instated as Supreme Chancellor (Jedi Council members are technically considered senators). Furthermore, Obi-Wan proves so popular on all the planets he was sent to that within a single month, fifty five end up defecting from the Seperatists because they remember him and know he'll root out the corruption in the senate.
- Happens quite a bit in Arc-Ved Protagonists:
- In "Coming Right Back": Yugi was able to get Maximum use out of the spell card United We Stand because he was able to fill his entire field with Kuriboh tokens by the effect of kuritablet, which would only do so after Yuya destroyed a monster. Furthermore, because Yuya attacked one last time after that, Yugi had one open space to be filled with Dark Magician (the monster United We Stand was used with) thanks to Eternal Soul.
- In "Synchro Testing" Yusei would only be able to use the effect of his Synchro Uprising Trap if one of his Synchro monsters was destroyed that turn. Once Yugo used the effect of his Clear Wing Synchro Dragon on Junk Warrior, Yusei was able to play it to allow him to summon Cosmic Blazar Dragon and win the duel.
- In "Shining Warrior, Dark Dragon", Yuto played Magic Cylinder against Yuma, Which can negate an attack and inflict Damage to his opponent equal to the attack of the monster whom had it's attack negated. As an added bonus, Yuma's monster actually had an effect that can take it off the field and dodge the trap card, but because Yuma powered it up with Stoic Challenge, he wasn't allowed to activate that effect, costing him the duel.
- In "Reluctant Choice", Atticus using the effect of Red-Eyes Wyvern winds up helping Yuri more then it helped him, as without it, there wouldn't have been enough monsters on the field for Yuri to use as Fusion Material on his next turn.
- In "Dark Fusion", Jaden's strategy to defeat Dennis heavily relied on the fact that Dennis's Pendulum cards were treated as spell cards while in the Pendulum Zone, both to power up his monsters and to get rid of one to stop it's effect from getting in the way. To make it even more of this trope, Jaden haven't even heard of Pendulum Summoning when the duel started or knew anything about Pendulum cards, Jaden only knew this info because Dennis made use of it on his previous turn.