[[quoteright:300:[[Franchise/FridayThe13th http://static.tvtropes.org/pmwiki/pub/images/villain_decay_1229.png]]]]
[-[[caption-width-right:300:Used with permission: [[http://www.suedeheadcomic.com suedeheadcomic.com]]]]-]
%% Used with permission (see Image Pickin' thread): suedeheadcomic.com
%% Image Pickin' conversation: http://tvtropes.org/pmwiki/posts.php?discussion=lhxpsx1kvbvspoh7pe09okg3

->'''Sideshow Bob''': ''Hello, Bart...''\\
'''Bart''': Oh, it's you, Bob. How' ya doin'?\\
'''Sideshow Bob''': No screams? ... Not even... an "eep"?\\
'''Bart''': Hey, I'm not afraid of you. Every time we tangle you wind up in jail!
-->-- ''WesternAnimation/TheSimpsons'', "Day of the Jackanapes"

The process by which a villain who is extremely scary on first appearance becomes a joke after a few more appearances.

In most shows, FailureIsTheOnlyOption [[TheGoodGuysAlwaysWin for the]] {{Villains}}, because [[TheBadGuyWins success]] would mean that the villains TakeOverTheWorld, kill all the good guys, and otherwise do things that make future episodes impossible. However, this eventually results in a ForegoneConclusion and a predictable plot, since it makes the audience wonder why TheHero is so concerned about an enemy that they've beaten six times already. Note that this does not apply to shows where the villains are supposed to be [[IneffectualSympatheticVillain incompetent jokes]] from the start.

Most writers will try to stop this decline in menace, which sometimes helps and sometimes makes the Villain Decay worse, but the fastest way to decay a villain is to [[HeelFaceTurn make him switch sides]].

Of course, you can prevent this by ''not'' having [[FailureIsTheOnlyOption failure be the only option]] for the villain; let them win battles, but not the war, or let their EvilPlan [[YouCantThwartStageOne come closer and closer to completion while the heroes race to prevent its final success]]. Or, for the ''really'' cunning villain, [[UnwittingPawn dupe the heroes into doing what they wanted all along]] or [[XanatosGambit benefit from them foiling the plan.]] Subsequent writers may decide to make the villain NotSoHarmless with a particularly shocking move on their part. Or you can make them a DiscOneFinalBoss, and set up somebody who is far more evil and hasn't decayed yet.

Note that Villain Decay is almost never caused by a lack of OffscreenVillainDarkMatter, a difficulty in recruiting {{Mooks}}, or even injuries from battle with the heroes -- which is to say, they don't become worse off because they have ''lost''. Also note that a VillainousBreakdown is not a guarantee of Villain Decay. Decay will only happen quicker if their entire VillainPedigree is replaced. If you have an InvincibleHero - especially one who shouldn't be capable of winning [[InvincibleIncompetent but somehow always wins anyway]] Villain Decay is almost assured, even for characters who haven't fought yet. Tends to be particularly hard to avoid for villains who manage to survive the heroes' climb up the SortingAlgorithmOfEvil.

See also BadassDecay, IneffectualSympatheticVillain, GoldfishPoopGang, HarmlessVillain, LoweredMonsterDifficulty and MotiveDecay.

Contrast VillainSue, InvincibleVillain, FromNobodyToNightmare, and OnlyTheAuthorCanSaveThemNow, where a villain is '''too''' effective or scary. Believe it or not, those tropes suck the tension out of the villains even worse than this one. Also contrast AdaptationalVillainy, where a relatively non-villainous character in a work becomes dramatically more villainous in an adaptation, and VillainForgotToLevelGrind, where the villain never becomes any ''less'' formidable, but the hero becomes so much ''more'' powerful over time that a once threatening villain is no longer a problem.

Compare and contrast FailureHero. Same concept--repeated failures [[InformedAbility ruins their credibility]]--different role.

See also DegradedBoss. Not to be confused with RedemptionDemotion, where the villian strength decays because of his HeelFaceTurn

[[noreallife]]
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!!Examples:

[[index]]
* VillainDecay/AnimeAndManga
* VillainDecay/ComicBooks
* VillainDecay/{{Film}}
* VillainDecay/{{Literature}}
* VillainDecay/LiveActionTV
* VillainDecay/ProfessionalWrestling
* VillainDecay/VideoGames
* VillainDecay/WebComics
* VillainDecay/WesternAnimation
[[/index]]

[[foldercontrol]]

[[folder:Fan Fiction]]
* In a stunning and [[CrowningMomentOfAwesome awesome]] inversion, Fanfic/DungeonKeeperAmi features Mukrezar. Mukrezar is, and was, a Keeper of dubious competence, given to many Zany schemes (usually involving a RingOfPower). However, [[spoiler: since his resurrection]] he has shown such an assessment is significantly lacking. Apparently his resourcefulness, ability to bounce back from crushing defeat, and, most importantly, willingness to take incredible chances- and then ''turn them into victories even if they failed'' -was his greatest asset. Every appearance has only increased the estimation of his threat, despite being PluckyComicRelief.
* In the beginning of ''FanFic/SnowAngels'', Disaster is introduced as an [[PhysicalGod almighty being]] capable of [[EldritchAbomination driving people to madness just by seeing it]]. For a short while the heroes (who include a {{time travel}}er and SufficientlyAdvancedAlien) actually have trouble fighting Disaster, but by the end of the first arc, Disaster has decayed so much that it's beaten up by perfectly-mundane schoolgirls. Ironically, Disaster is the same entity as [[spoiler:Sasaki]], so she actually received an upgrade before the decay.
* ''FanFic/MyLittleUnicorn'':
** [[spoiler:Discord, god of chaos and in general considered one of the best characters in ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', is reduced to a brainwashed monster henchman of BigBad Titan near the end of the story and loses his reality warping abilities. To add insult to injury, he gets KilledOffForReal by Celestia.]]
** [[spoiler:The sequel also does this to Queen Chrysalis.]]
* ''Literature/HarryPotter'' has Voldemort, who suffers a severe case of this in Fanfic/TheArianaBlackSeries. In canon, he's practically a personification of [[NightmareFuel/HarryPotter Nightmare Fuel]]. In the fanfic, he's just an incompetent mustache-twirler.
* Subverted in ''[[FanFic/UltimateSleepwalker Ultimate Sleepwalker: The New Dreams]]'' or ''[[FanFic/UltimateSpiderWoman Ultimate Spider-Woman: Change With The Light]]''. Given that the SortingAlgorithmOfEvil does '''NOT''' apply in these series, and the heroes do not gain any new powersets or power boosts over the course of the series, villains who were introduced early on have remained constantly and deadly threats throughout both series' runs. In fact, the author has specifically gone out of his way to ensure that this trope is subverted by allowing villains who look like they might suffer from this trope to [[TheBadGuyWins actually succeed in their evil plots.]]
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[[folder:Pinball]]
* Prince Charming, already a fairly ineffectual villain in the ''Film/{{Shrek}}'' movies, gets decayed further to a minor protagonist in the ''Pinball/{{Shrek}}'' pinball game.
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[[folder:Radio]]
* Spoofed in ''Radio/{{Nebulous}}'' where K.E.N.T. mention battling "the Seaquel Devils" (a play on the ''Series/DoctorWho'' monster the Sea Devils) - "They came back again. And again. Each time less effective than the last." Harry then reminds them of the Prequeloids - "We always knew how they did that!"
[[/folder]]

[[folder:Tabletop Games]]
* Whenever a new army in ''TabletopGame/{{Warhammer 40000}}'' is introduced, they start as existential threats to the entire setting for a year or two and then decay into just another faction.
** There's an obvious reason for this: ''profit''. Make your new faction unstoppable arse-kickers who make mincemeat out of any opposition, and you've got a surefire way of getting eternal 13-year-old boys ''everywhere'' forking out on them just so that they can be the toughest tabletop warrior. Then throw out some heroic last stands for the Space Marines so that the existing factions don't get completely alienated. Wait a few years till everybody's got them, introduce a new, even more powerful, even more expensive faction. Rinse and repeat. ''Profit''.
** Necrons. When first formally introduced, they were supremely enigmatic horrors serving even more horrific beings, known for mysterious harvests of life, unknown plans, and ridiculously advanced technology. Fan perception of them quickly made them {{Omnicidal Maniac}}s to the public eye, and they began to be perceived as a race-wide CreatorsPet. The 5th Edition Codex has resulted in a serious hit to the Necrons' previously unknown and unstoppable nature in favor of shifting the focus towards the Tyranids and Chaos as the greatest threats facing humanity.
** The Orks started off as a galaxy wide tide of death and destruction but degenerated into pub brawlers over time.
*** Zigzagged with the Orks. No one in the setting, and very few outside of it, will argue that Ork hordes aren't a serious, ongoing threat to everyone else. The problem is, Orks have kinda been stuck in the status quo area for a while, and the big [[VideoGame/DawnOfWar video]] [[VideoGame/Warhammer40000SpaceMarine games]] featuring them have them on the bottom of the VillainPedigree.
** Tyranids also started off as unstoppable, galaxy-devouring horde of alien locusts, but their impending, full-scale invasion and eating of the galaxy kept getting delayed and delayed and then the tyranids inexplicably adopted an "attack in small numbers" strategy that made them less of a threat to the setting.
** Then on a smaller scale you have some of the lords of Chaos. Abbadon the Despoiler is probably the number one offender. He is supposedly the heir to Horus and carries the title of Warmaster of Chaos, as well as the favor of all four Chaos Gods. However his Black Crusades seem to end in defeat more often than not, or at best as a stalemate. One can argue on whether or not it's his fault but the community at large now looks at him as a bit of a joke, earning him the nickname [[FanNickname Failbaddon]].
*** Games Workshop has spent the better part of 2013 trying their hardest to dispel this notion about Abaddon, eventually resorting to retconning eleven of his thirteen Black Crusades.
* In any table top rpg with a significantly steep power curve, this can happen rather quickly. ''TabletopGame/DungeonsAndDragons'' (and ''TabletopGame/{{Pathfinder}})'' are the best known examples, where an enemy which is an absolute terror at one point could be a beatable boss a few levels later and a mook a few more after that. If the villain doesn't scale to the power level of each PlayerCharacter, this trope becomes almost inevitable.
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[[folder: Web Original ]]
* Blood Boy, a big antagonist in the early stages of ''Roleplay/SurvivalOfTheFittest'' version 3 had this occur in the last topic he appeared in, becoming an almost [[Franchise/{{Batman}} Jokeresque]] figure (to the point of almost directly quoting from ''Film/TheDarkKnight'' at one point). This does, however, have a fairly good reason: a different handler took over the character for that scene, one who, needless to say, had a rather different take on the character.
* The Necromancer, in the Literature/WhateleyUniverse. Starts out as one of the top 60 supervillains on the Interpol rating scale. He's now oh-for-two against Team Kimba, who are ''high schoolers''. Even with his team of supervillains working for him. Now one-for-two, making out like a bandit in the process, excluding one goal failing due to a [[DidntSeeThatComing Unknown Unknown.]]
* On TWGTG, we have the MadScientist Dr. Insano that first appeared on WebVideo/TheSpoonyExperiment, whose early appearances depict him as a LaughablyEvil, but none the less dangerous character. Later appearances, however, have him attempting no evil plans and just have him acting comedic.
** Averted with ''WebVideo/AtopTheFourthWall'''s villain Mechakara, who is presented as a KnightOfCerebus that almost kills Linkara in his first appearance, and when he later reappears, despite being DemotedToDragon for the new BigBad Lord Vyce, he's become even more a threat due to being upgraded, shown most notably in that his re-match with Linkara he {{No Sell}}s [[ItOnlyWorksOnce the methods used to defeat him the first time]]. (And then in ''WebVideo/ToBoldlyFlee'', he not only takes out Linkara in five seconds, but comes within an ace of killing ''the entire TGWTG cast''.)
** The suave, chessmaster-like, psychotic WebVideo/{{Ask That Guy|WithTheGlasses}} is slowly turning into a pathetic, needy, emotional wreck. Maybe played with because he's always been like that, he just can't seem to hide it anymore.
** In his first appearance during the Nostalgia Critic's review of ''Film/TheLastAirbender'', Shamalayan removed Critic's talent (he gets it back, even though "[[SelfDeprecation there wasn't much to lose]]"), and would have done it again in ''Devil'' if he hadn't been stopped by the actual Devil. Come ''Film/AfterEarth'', and he's become so predictable that Critic isn't even phased by him anymore.
* Strong Bad, from the infamous WebAnimation/HomestarRunner universe, used to try to do actually evil things, but he's gone under lots of Villain Decay. To quote him from the Strong Bad Email(sbemail) called "your edge"
-->'''Strong Bad''': Me and the Cheat, walked past this deflated basketball and consciously decided not to re-inflate it! And we feathered Strong Sad for a HALF HOUR!
* In ''Series/{{Noob}}'', Dark Avenger is one of the most feared player killers of the game... except a RunningGag has [[TheFool Sparadrap]] accidentally killing ''him''. He's shown to give other characters difficulty, but it made the decay slower rather than keeping it from happening. [[spoiler:Writing Dark Avenger out of the series due to his actor moving away relied on having that decay reach the lowest point possible.]]
* The C.C Corporation in ''Series/FlandersCompany'' started out as a relatively competent organisation who actually succeeded in taking over Trueman's company without him even noticing, and their leader Carla Burnelle was a PsychoElectro and {{Magnificent B|astard}}itch who could handle the whole team of protagonists of her own. Come season 3, the arrival of [[KnightOfCerebus Aegis]] cause Carla to suffer a VillainousBreakdown, leading her to a {{Genre Blind|ness}} decision. Her group is even worse, as most competent members are either KilledOffForReal or PutOnABus, leaving her more and more SurroundedByIdiots.
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