History NoOntologicalInertia / WesternAnimation

** In "The First Day", the majority of students and teachers at Hexside [[MagicEater get their magic eaten]] by a [[BasiliskAndCockatrice basilisk]] who was posing as a school inspector, causeing them to pass out. After Luz and the detention students defeat the basilisk, it somehow disspels the eaten magic and it returns to everyone.

** In "The First Day", the majority of students and teachers at Hexside get their magic eaten by a basilisk who was posing as a school inspector, causeing them to pass out. After Luz and the detention students defeat the basilisk, it somehow disspels the eaten magic and it returns to everyone.

** In "The First Day", the majority of students and teachers at Hexside get their magic eaten by a basilisk who was posing as a school inspector, leaving them passed out. After Luz and the detention students defeat the basilisk, it somehow disspels the eaten magic and it returns to everyone.
** In "Eda's Requiem", Eda discovers that her curse can cause anything around her to rot into dust if she uses [[MagicMusic Bard magic]]. Later on, when she and Raine are using this against some of the Coven Heads, they almost get affected themselves until Raine convinces Eda to stop she she can still be around for Luz and King. When it is stopped, everyone who was affected are completely fine with no lasting effects.

*** In "[[Recap/MyLittlePonyAndFriendsE44CrunchTheRockdog2 Crunch the Rockdog]]", Part 2, when Crunch is depowered, everything he petrified is instantly returned to its original form.

*** Subverted twice in "[[Recap/MyLittlePonyFriendshipIsMagicS4E23InspirationManifestation Inspiration Manifestation]]":
*** Spike tries to invoke this by eating the [[TomeOfEldritchLore spellbook]] that got Rarity DrunkOnTheDarkSide. This accomplishes nothing, as Rarity retains her dark magic powers and corrupted behavior. It takes a CurseEscapeClause to set her right again.
*** Even after the spell breaks completely, the changes Rarity made to Ponyville still remain. It takes ''three'' princesses all day to reverse everything.

** In the episode "Chaos in Crystal", the MonsterOfTheWeek, Rex Shard, transforms large swathes of the desert near Megakat City into crystal, as well as many kats, the prison he broke out of, and the water in the Megakat Reservoir. Transforming Shard back into a normal kat fixes it all, except possibly for the Warden, whose crystallized body was clearly shattered, but that was left unresolved. When one takes into consideration the fact that showing a crystallized being's body turn back into scattered flesh and blood would be something [[LudicrousGibs not meant to be shown in a cartoon series for young teens]], It's almost GettingCrapPastTheRadar, as it was most certainly fatal.

* ''WesternAnimation/Castlevania2017'': A monster called the Stone-Eye Cyclops lurks in the catacombs under the city of Gresit, [[TakenForGranit turning anyone who it comes across to stone]] so it can [[EmotionEater feed on their terror]] as they're left [[AndIMustScream trapped and fully conscious in their bodies]]. Because the Cyclops is using its magic to ''keep'' its victims trapped in stone, killing it undoes the spell and frees its victims. Unfortunately, it only restores the body as they currently are. [[LiterallyShatteredLives If the statue happened to be broken before...]]

* In an episode of ''WesternAnimation/Ben10'', a giant tick-like alien lands on Yellowstone Park and begins sucking all life in the area dry. The Tennysons are in the area, but are unable to stop it immediately due to the usual aliens proving ineffective. By the time Ben finally learns to use the new alien of the week, the entire area is gray and dead, the usual geysers are spitting poison, and the ground is brittle and breaking apart in large floating chunks. After the tick is destroyed, the background ''literally'' turns green and lush again in mid-conversation, and the gunk that Ben has to wash off the Rustbucket is the only evidence that the tick was ever there. Why then did the gunk remain? [[spoiler:Just to make life suck for Ben.]]
* In an episode of ''WesternAnimation/DuckTales1987'', a magical golden duck artifact with the power to turn things into gold has unleashed a magic wave that is turning the world into gold. Scrooge and the guy who accidentally started the whole thing are rushing to return the artifact to the shrine fountain it came from. They eventually reach the shrine just ahead of the magic effect and throw the duck into the water even as they're turned to gold too... and then everything is returned to normal.
* In the ''WesternAnimation/TheFairlyOddParents'' episode "Whishy Washy" Cosmo and Wanda turn into teenagers [[RetGone thereby getting rid of their child, Poof]], yet the result of a wish they grant before then remains, as does Timmy's [[RippleEffectProofMemory memory of Poof]].

* Tended to be the case on ''Franchise/MyLittlePony''. For instance, when Tirek was killed his spells were undone.
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** In the episode "Secret of My Excess", Spike's greed causes him to grow into a larger dragon progressively over the course of the episode, until by the end he is a rampaging dragon the size of a small mountain. When he realizes that he was wrong to be so greedy, Spike immediately, and magically, poofs back to his original size.
** Subverted twice in "[[Recap/MyLittlePonyFriendshipIsMagicS4E23InspirationManifestation Inspiration Manifestation]]":
*** Spike tries to invoke this by eating the [[TomeOfEldritchLore spellbook]] that got Rarity DrunkOnTheDarkSide. This accomplishes nothing, as Rarity retains her dark magic powers and corrupted behavior. It takes a CurseEscapeClause to set her right again.
*** Even after the spell breaks completely, the changes Rarity made to Ponyville still remain. It takes ''three'' princesses all day to reverse everything.
* A recurring element in ''WesternAnimation/TheRealGhostbusters'' and ''WesternAnimation/ExtremeGhostbusters'' is that any damages done by the [[MonsterOfTheWeek Ghost of the Week]] is reverted after the ghost is caught or defeated.

** However that's specifically Ladybug's power to restore everything. Most of the time even after the Akuma is reverted and purified the effects of their power still sticks, until Ladybug using her restoration power. The one major exception is [[spoiler:Scarlet Moth in the season 2 finale. When his weapon (which was boosted to allow him to create infinite Akuma's instead of just one) is broken, all the akuma are instantly purified as well as anyone affected by their abilities like Darkblade's enslaved knights, even though this usually requires Ladybug to personally fix]]

* On ''WesternAnimation/StevenUniverse,'' [[EnfantTerrible Onion]] uses a [[MatterReplicator Replicator Wand]] to flood the entire town in millions of cheap plastic toys, and then replicates cars to throw at the Gems. When they finally get the Wand back [[BlackBossLady Garnet]] destroys it, causing everything to disappear.
-->'''Garnet:''' [[InvokedTrope I'm not cleaning up this mess]].

* An episode of ''WesternAnimation/MyLifeAsATeenageRobot'' involved Jenny being turned into a rampaging monster by a tiny machine that had infected her. As soon as the machine was removed all the changes were undone in seconds right before the camera. The thing that makes this particularly [[DrinkingGame/TVTropes egregious]] is the fact that Jenny is a ''robot'', but then again, so was the thing that infected her in the first place (done by the Cluster.)

* In ''WesternAnimation/SupermanTheAnimatedSeries'', this is true with Mister Mxyzptlk's powers. When he's banished back to his home dimension, everything he did is instantly undone; most notably, victims of BalefulPolymorph are restored to human form. (Although Lois, who he turned into a horse, still wants to eat the carrot he was feeding her, and questions why when she notices.)
* ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' once had an episode where Jimmy used his Hypno-beam to make his parents think that the next day was his birthday in order to get a chemistry set... instead, the Hypno-beam's power makes them think that ''everyday'' is his birthday. After eventually getting sick of it, Jimmy decides to unhypnotize them, only for the party clown to take the Hypno-beam and accidentally destroy it in a misperformed party trick. The next day his parents tell him that (assumably because he's had so many birthdays) that he's now 18 and going to college, but they were just faking it and destroying the Hypno-beam ''really'' made the hypnosis end (the bill for the clown was still there, though).
* In the ''WesternAnimation/SushiPack'' episode "But is it Art?", once the OminousPipeOrgan The Collector used to [[ArtInitiatesLife bring famous paintings to life]] is destroyed, the "art zombies" immediately return to their canvases.
* ''WesternAnimation/{{Gargoyles}}'':
** Sort-of subverted in an early episode, when Demona cast a spell on Goliath, transforming him into [[{{Brainwashed}} her thrall]] as long as she carried the original spell (or at least, the page from the book it was written in). While the book and the page that the spell was written upon were both recovered and Demona defeated, none of the gargoyles had the necessary magical skill to undo the spell, thus leaving Goliath stuck as a slave to whoever held the spell [[AndIMustScream and fully aware of his actions and unable to stop himself]]. Elisa, however, came up with an elegant solution; she held the page with the spell written on it in her hands and commanded Goliath [[ExactWords to live the rest of his life as if he'd never been put under that spell in the first place]]. Needless to say, it worked.
** Generally averted, however. Spells cast tended to have permanent effects until either a counter-spell was used or an escape clause was evoked. Even [[TheFairFolk Oberon's Children]] tend to follow these rules.
* ''WesternAnimation/SWATKats'':
** In the episode "Chaos in Crystal", the MonsterOfTheWeek, Rex Shard, transforms large swathes of the desert near Megakat City into crystal, as well as many kats, the prison he broke out of, and the water in the Megakat Reservoir. Transforming Shard back into a normal kat fixes it all, except possibly for the Warden, whose crystallized body was clearly shattered, but that was left unresolved. When one takes into consideration the fact that showing a crystallized being's body turn back into scattered flesh and blood would be something [[LudicrousGibs not meant to be shown in a cartoon series for young teens]], It's almost GettingCrapPastTheRadar, as it was most certainly fatal.
** Most episodes involving Dr. Viper and his mutations are also included. Anti-mutagens apparently are "reverse mutagens" and capable of shrinking bloated, mutated creatures back to normal, rather than stopping further mutation.
* ''WesternAnimation/TheSimpsons'':
** In a ''WesternAnimation/TreehouseOfHorror'' episode based on ''Film/BramStokersDracula'', in order to de-vampirize Bart they have to kill the head vampire. (It doesn't work, since the vampire-slayers turn out to be vampires themselves, and in this universe vampires apparently benefit from ontological NWordPrivileges.) They also didn't kill the ''real'' head vampire. The episode ends before the only human (Lisa) can, so it's never revealed if it would have worked.
** Zigzagged in another ''Treehouse of Horror'' episode, when a witch turns Homer into a mishmash creature. Killing the witch undoes his transformation... except for his chicken undercarriage, which he can conveniently use to lay eggs to feed his family.
* In the first season finale of ''WesternAnimation/TransformersPrime'', [[spoiler:Unicron]] unleashes a whack of natural disasters all over Earth, including loads of tornadoes and a humongous tidal wave that rises above the cityscape. After he's been defeated, the wall of water plainly freezes mid-air and promptly falls apart, and the blowing winds also disappear.
* In the ''WesternAnimation/TheFairlyOddParents'' episode "Whishy Washy" Cosmo and Wanda turn into teenagers [[RetGone thereby getting rid of their child, Poof]], yet the result of a wish they grant before then remains, as does Timmy's [[RippleEffectProofMemory memory of Poof]].
* Tended to be the case on ''Franchise/MyLittlePony''. For instance, when Tirek was killed his spells were undone.
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** In the episode "Secret of My Excess", Spike's greed causes him to grow into a larger dragon progressively over the course of the episode, until by the end he is a rampaging dragon the size of a small mountain. When he realizes that he was wrong to be so greedy, Spike immediately, and magically, poofs back to his original size.
** Subverted twice in "[[Recap/MyLittlePonyFriendshipIsMagicS4E23InspirationManifestation Inspiration Manifestation]]":
*** Spike tries to invoke this by eating the [[TomeOfEldritchLore spellbook]] that got Rarity DrunkOnTheDarkSide. This accomplishes nothing, as Rarity retains her dark magic powers and corrupted behavior. It takes a CurseEscapeClause to set her right again.
*** Even after the spell breaks completely, the changes Rarity made to Ponyville still remain. It takes ''three'' princesses all day to reverse everything.
%% other examples fit better under Status Quo Is God; please do not re-add them here
* Part of why Gang leaves Crystal Cove at the end of ''WesternAnimation/ScoobyDooMysteryIncorporated''. After they destroy the Evil Entity that has manipulated everyone for hundreds of years, everything it ever did was erased from history. All of the cases and all of the monsters are now gone. Furthermore, this means everyone that the Evil Entity's curse would've corrupted got to live happy, healthy and productive lives (especially the gang's families); the entire scenario weighs heavily on them since they were five of the only six or so people on the planet [[RippleEffectProofMemory who still remember the original timeline]]. As for the other person, it turns out to be ''Harlan Ellison'' of all people (who is able to remember multiple timelines due to being a "genius") and has become the new Mr. E. He's invited them to study at the new university he is at and will grant them plenty of new mysteries to solve.

* ''WesternAnimation/SouthPark'':
** {{Invoked}} (sort of) in ''Goth Kids 3: Dawn of the Posers'': Henrietta is apparently brainwashed by [[EmoTeen emo]] [[MakesJustAsMuchSenseInContext plants bent on world domination]], causing her to switch cliques. When the others confront the plants they discover that [[spoiler:the whole thing was a scam and Henrietta only became emo [[NotBrainwashed by the power of suggestion]]]]. Afterwards they let Henrietta save face by pretending that "killing the plant leader" freed her from their control.
** PlayedStraight in ''Pinkeye''. A newly zombified Kenny turns the other inhabitants of the town into the walking undead, prompting the boys to fend them off with the use of chainsaws. Kyle is informed killing the original zombie magically turns everyone back to normal, which it does, but that's tough luck for everyone who was ''already'' hacked to bits by then.
* On ''WesternAnimation/StevenUniverse,'' [[EnfantTerrible Onion]] uses a [[MatterReplicator Replicator Wand]] to flood the entire town in millions of cheap plastic toys, and then replicates cars to throw at the Gems. When they finally get the Wand back [[BlackBossLady Garnet]] destroys it, causing everything to disappear.
-->'''Garnet:''' [[InvokedTrope I'm not cleaning up this mess]].
** Subverted at the end of the "Diamond Days" arc. Steven [[spoiler: successfully convinces White Diamond to join her "sisters" Blue and Yellow--plus Steven himself, who carries Pink Diamond's Gem--in healing all of the [[BrainwashedAndCrazy corrupted]] Gems on Earth. By combining their powers, they're able to permanently restore the Gems to their pre-monstrous forms...however, most of those Gems were corrupted for thousands of years, and they retain qualities of their beast forms even after being brought back to their original selves.]]
* In the final story arc of ''WesternAnimation/GravityFalls'', [[spoiler:the demon Bill Cipher and his otherworldly minions]] have invaded Gravity Falls and transformed it into a chaotic land. In the series finale, [[spoiler:Bill Cipher is destroyed]], causing his extradimensional minions to be sucked back into to their own universe and everything [[spoiler:Bill]] did is reversed.
* [[AvertedTrope Averted]] in the ''WesternAnimation/{{Superjail}}'' episode "Jean And Paul And Beefy And Alice".
* ''WesternAnimation/SamuraiJack''; In Season 5, Jack meets an assassin named Ashi, whom he eventually redeems and starts a romance with. In the penultimate episode, she is revealed to be [[HalfHumanHybrid Aku's biological daughter]], and after briefly being subject to a VillainOverride she uses her new powers to send Jack back to the past to kill Aku. However, a little while later she realizes that since Aku was destroyed in the past, she and her sisters were never conceived in the future, and she fades away to nothingness in Jack's arms.

* ''WesternAnimation/SpaceGhost'' episode "The Sorcerer". The title villain changes Jan and Jace into giant versions of Blip (the TeamPet monkey) using the powers of his magical wand. When Jace grabs the wand away from him and breaks it, the spell is broken too and Jan and Jace turn back to normal.
* Averted in the episode "Marco Jr." of ''WesternAnimation/StarVsTheForcesOfEvil''. Destroying a painting that was causing Marco's body to transform doesn't stop the process, as the ash that the painting became still has the magic enchantment on it. Star and his parents find themselves [[ItMakesSenseInContext having to take a personality test for him]] in order to overwrite the spell instead.
** Played a bit straighter in "Conquer." Meteora, [[spoiler: formerly known as Miss Heinous]], has been rampaging through Mewni, shooting people with her newfound laser eye powers [[YourSoulIsMine that take people's souls]], leaving them in a lifeless state with black eyes, with her growing bigger every time she does so. Seeing this happen before at the hands of [[spoiler: Toffee]], Star tries to get to the sanctuary where there is a substance that can revive everyone it's happened to, but fails. In the end, after Meteroa is [[spoiler: turned into a baby]], everyone's souls are automatically restored and they revive, saving Star from having to make ''loads'' of trips there.

* ''WesternAnimation/WinxClub'': In the Season 5 finale, Tritannus' trident is destroyed by Bloom, causing all of his spells to be undone.

* A recurring element in ''WesternAnimation/TheRealGhostbusters'' and ''WesternAnimation/ExtremeGhostbusters'' is that any damages done by the [[MonsterOfTheWeek Ghost of the Week]] is reverted after the ghost is caught or defeated.

*** Spike tries to invoke this by eating the spellbook. This accomplishes nothing, as Rarity retains her powers and corrupted behavior. It takes a CurseEscapeClause to set Rarity right again.
*** Even after the book is destroyed and the spell breaks, the changes to Ponyville still remain. It takes ''three'' princesses all day to reverse everything.

* In the final story arc of ''WesternAnimation/GravityFalls'', [[spoiler:the demon Bill Cipher and his otherworldly minions]] have invaded Gravity Falls and transformed it into a chaotic land. In the series finale, [[spoiler:Bill Cipher is destroyed]], causing his extradimensional minions to sucked back into to their own universe and everything [[spoiler:Bill]] did is reversed.

* In the final story arc of ''WesternAnimation/GravityFalls'', [[spoiler:the demon Bill Cipher and his otherworldly minions]] have invaded Gravity Falls and transformed it into a chaotic land. In the series finale, Bill Cipher is destroyed, causing his extradimensional minions to sucked back into to their own universe and everything Bill did is reversed.

* In the final story arc of ''WesternAnimation/GravityFalls'', [[spoiler:the demon Bill Cipher and his otherworldly allies]] have invaded the central cast's home universe and transformed various people and objects for their own amusement. In the series finale, the leader of this invasion is killed, causing the other extradimensional beings involved to be immediately returned to their own universe and the transformations to be reversed.

** Subverted at the end of the "Diamond Days" arc, Steven [[spoiler: successfully convinces White Diamond to join her "sisters" Blue and Yellow--plus Steven himself, who carries Pink Diamond's Gem--in healing all of the [[BrainwashedAndCrazy corrupted]] Gems on Earth. By combining their powers, they're able to restore the Gems to their pre-monstrous forms...however, most of those Gems were corrupted for thousands of years, and they retain qualities of their beast forms even after being brought back to their original selves.]]

* In the final story arc of ''WesternAnimation/GravityFalls'', [[spoiler:the demon Bill Cipher and his otherworldly allies]] have invaded the central cast's home universe and transformed various people and objects for their own amusement. In the series finale, the leader of this invasion is killed, causing the other alien beings involved to be immediately returned to their own universe and the transformations to be reversed.

** Played a bit straighter in "Conquer." Meteora, [[spoiler: formerly known as miss Heinous]], has been rampaging through Mewni, shooting people with her newfound laser eye powers [[YourSoulIsMine that take people's souls]], leaving them in a lifeless state with black eyes, with her growing bigger every time she does so. Seeing this happen before at the hands of [[spoiler: Toffee]], Star tries to get to the sanctuary where there is a substance that can revive everyone it's happened to, but fails. In the end, after Meteroa is [[spoiler: turned into a baby]], everyone's souls are automatically restored and they revive, saving Star from having to make ''loads'' of trips there.

* ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' once had an episode where Jimmy used a hypnosis machine to make his parent think the next day was his birthday to get a chemistry set, only for it to turn out to make them think ''every'' day was his birthday. After eventually getting sick of it, Jimmy decides to unhypnotize them, but the party clown destroys the machine in a misperformed party trick. The next day his parents tell him that (assumably because he's had so many birthdays) that he's now 18 and going to college, but they were just faking it and destroying the machine really made the hypnosis end (the bill for the clown was still there, though).

** In the episode "Chaos in Crystal", the MonsterOfTheWeek, Rex Shard, transforms large swathes of the desert near Megakat City into crystal, as well as many kats, the prison he broke out of, and the water in the Megakat Reservoir. Transforming Shard back into a normal kat fixes it all, except possibly for the Warden, whose crystallized body was clearly shattered, but that was left unresolved. It was left unresolved because the results would be something [[LudicrousGibs not showable in a cartoon series]]. It's almost GettingCrapPastTheRadar, as it was most certainly fatal.

** Zigzagged in another ''Treehouse of Horror'' episode, when a witch turns Homer into a mishmash creature. Killing the witch undoes his transformation, all except his chicken undercarriage, which he can conveniently use to lay eggs to feed his family.

* In the ''WesternAnimation/TheFairlyOddParents'' episode "Whishy Wash" Cosmo and Wanda turn into teenagers [[RetGone thereby getting rid of their child, Poof]], yet the result of a wish they grant before then remains, as does Timmy's [[RippleEffectProofMemory memory of Poof]].
* Tended to be the case on ''Franchise/MyLittlePony''. For instance, when Tirac was killed his spells were undone.

* Part of why Gang leaves Crystal Cove at the end of ''WesternAnimation/ScoobyDooMysteryIncorporated''. After they destroy the Evil Entity that has manipulated everyone for hundreads of years, everything it ever did was erased from history. All of the cases and all of the monsters are now gone. Furthermore, this means everyone go to live happy, healthy and productive lives (especially their families); the entire scenario weighs heavily on them since they were five of the only six or so people on the planet [[RippleEffectProofMemory who still remember the original timeline]]. As for the other person, it turns out to be ''Harlan Ellison'' of all people (who is able to remember multiple timelines due to being a "genius") and has become the Mr. E. He's invited them to study at the new university is he at and will grant them plenty of new mysteries to solve.

** {{Invoked}} (sort of) in ''Goth Kids 3: Dawn of the Posers'': Henrietta is brainwashed by [[EmoTeen emo]] [[MakesJustAsMuchSenseInContext plants bent on world domination]], causing her to switch cliques. When the others confront the plants they discover that [[spoiler:the whole thing was a scam and Henrietta only became emo [[NotBrainwashed by the power of suggestion]]]]. Afterwards they let Henrietta save face by pretending that "killing the plant leader" freed her from their control.