History Main / EvilWeapon

* ''Literature/TheDeathGateCycle'' has [[NamesToRunAwayFromReallyFast the Cursed Blade]]. It's a MorphWeapon that can turn into any weapon necessary to defeat a threat facing its wielder (or [[SummonBiggerFish summon something that can if the threat is more powerful than the blade]]) though its true form is a rather crude-looking dagger. Unfortunately, it also has a rudimentary intelligence that doesn't usually have thoughts more complex than "kill the threat", and once it gets going, it sees ''everyone'' as a threat[[note]] the Blade is introduced with a charming little story about how a past wielder used it to spar with his brother - except the Blade can't tell the difference between sparring and actual combat, and the predictable happened[[/note]]. Even the wielder has only limited control over it, winding up as little more than a means of transport for the Blade. Worst of all? It's the only one that exists in the present time, but at one point the [[WitchSpecies Sartan]] ''mass produced'' these things before handing them off to unsuspecting [[{{Muggles}} mensch]] allies.

* In ''VideoGame/{{Shantae}} and the Pirate's Curse'', the Pirate Master's weapons are revealed to be cursed and their evil will completely consume their wielder eventually. [[spoiler:However, their curse could be broken if the Pirate Master is destroyed]].
* Meligaunt in ''VideoGame/{{Guenevere}}'' wields a giant, evil-looking claymore that [[PoisonedWeapons poisons those wounded by it]] and can be used to fuel dark magic.

* In ''Franchise/OnePiece'' [[BadassNormal Zoro]] gets a cursed katana. It encourages the owner to seek conflict and kill, but Zoro was able to overpower it. Occasionally it delivers a serious blow when Zoro tries to hold back, like on Whiskey Peak. It is not sentient, nor does it ever "communicate" in any way- we only have Zoro's reactions and sense to go on. It's also the youngest, and thus weakest, of three swords of the same class by its forger. The oldest is also said to be in the strongest category of swords, and is likely to be much more evil.

* Deconstructed and Defied by a certain UltimateBlacksmith in ''Manga/OnePiece''. As he puts it, a sword's purpose is to kill, and a swordsmith should try and make a sword that can take as many lives as possible. If his sword is considered evil, hungry or cursed because it's taken so many lives, he takes it as a ''[[InsultBackfire praise]]'', since that means the sword fulfills its purpose well. If the wielder comes into harm for wielding such a blade, that's on the wielder for failing to tame the sword; [[OnlyTheChosenMayWield the sword chooses its wielder, after all.]]

* Deconstructed and Defied by a certain UltimateBlacksmith in ''Manga/OnePiece''. As he puts it, a sword's purpose is to kill, and a swordsmith should try and make a sword that can take as many lives as possible. If his sword is considered evil, hungry or cursed because it's taken so many lives, he takes it as a ''[[InsultBackfire praise]]'', since that means the sword fulfills its purpose well. If the wielder comes into harm for wielding such a blade, that's on the wielder for failing to tame the sword; [[OnlyTheWorthyMayWield the sword chooses its wielder, after all.]]

** Tsubami Yayoi's [[LightIsNotGood Izayoi]] steals all light around it, including its user's.

* The Xin Mo sword in ''Literature/RenZhaFanPaiZiJiuXiTong''. Extremely powerful, but mind corrupting and constantly fighting against its wielder. Having had hundreds of owners over the years, all of them eventually died to it, unable to suppress its evil nature, at least until it falls into the hands of ''Proud Immortal Demon Way's'' overpowered protagonist Luo Binghe. But even he has trouble with it. [[spoiler:Shen Qingqiu ends up sacrificing himself ''twice'' to keep him from completely losing control. After the second time, Luo Binghe ends up destroying it.]]

* Xin Mo in ''Literature/RenZhaFanPaiZiJiuXiTong''. Extremely powerful, but mind corrupting and constantly fighting against its wielder. Having had hundreds of owners over the years, all of them eventually died to it, unable to suppress its evil nature, at least until it falls into the hands of ''Proud Immortal Demon Way's'' protagonist Luo Binghe. But even he has trouble with it, especially in Shen Yuan's timeline. [[spoiler:Shen Yuan ends up sacrificing himself ''twice'' to keep him from completely losing control. After the second time, Luo Binghe ends up destroying it.]]

* [[http://www.mariowiki.com/images/thumb/5/54/Kleever2.jpg/180px-Kleever2.jpg Kleever]] from ''VideoGame/DonkeyKongCountry2DiddysKongQuest''. It's apparently a posessed, evil sword that starts out being wielded by an arm made of fire, then just attacks on its own accord.

* Rubilax from ''WesternAnimation/{{Wakfu}}'' is a [[SealedEvilInACan Sealed Demon in a Sword]] whose greatest desire is for absolute carnage and happens to be able to [[DemonicPossession possess people]].

* All-Black the Necrosword wielded by Gorr the God-butcher, a foe of Comicbook/TheMightyThor, is a blade of darkness that grants its owner vast power fueled by the lifeblood of slain gods. The sword also has a nasty habit of corrupting anyone who wields it into an AxCrazy butcher, even someone as heroic as Thor. It's one of the most powerful and evil weapons in the Marvel Universe.

* ''FanFic/RosarioVampireBrightestDarkness'': While not evil per se, Yukari falls prey to one briefly in Act III; Ruby, Apoch, and Astreal make her a new wand after her original one broke, but Apoch and Astreal misread the instructions while doing so and give the wand a ''Zeta''-line seal instead of a ''Beta''-line seal. As Ruby explains, Zeta-line seals are specifically designed to harness a witch's natural power and amplify it, and can prove difficult to wield if the user is not trained to handle it. In Act III chapter 13, the seal initially gives Yukari increased BloodKnight tendencies and makes her more irritable to the point where she [[DropTheWashtub drops]] ''[[DropTheWashtub three]]'' [[DropTheWashtub consecutive washtubs]] on Kurumu's head without provocation, but by chapters 14 and 15, she ends up [[WithGreatPowerComesGreatInsanity going insane]] [[DrunkOnPower with power]] and attacking the others in a psychotic rampage; the wand [[SuperpowerMeltdown actually starts to physically damage Yukari's body]] before Tsukune manages to bypass her defenses and destroy it.

* In Creator/GrahamMcNeill's TabletopGame/{{Warhammer 40000}} Literature/HorusHeresy novel ''Fulgrim'', Fulgrim's Chaos-tainted sword. It lures him into treachery and murder [[spoiler:and when he [[CainAndAbel fights his own brother]], Ferrus Manus, convinced him that he must kill him to save his life. Then it plays on his guilt and [[HeelRealization lets him realize the full extent of it]], and uses that to persuade him to [[DemonicPossession let it possess him]].]]

* Several in ''TabletopGame/{{Warhammer}}'' and ''TabletopGame/{{Warhammer 40000}}''. For starters, every single daemon weapon ever. Notable ones include the Slayer of Kings, the sword of Archaon the Everchosen (''Warhammer Fantasy''), Gorechild[[note]]originally wielded by [[FourStarBadass Primarch]] [[UnstoppableRage Angron]], [[DualWielding in tandem]] with its partner [[ThemeNaming Gorefather]][[/note]], the chain-axe belonging to Kharn the Betrayer (''40k''), and the Primarch Fulgrim in ''40k'' got corrupted by a powerful daemon weapon. The weapon slowly caused him to turn to Chaos, and in the end, [[spoiler:when he refused to obey it, it possessed his body, turning him into a daemon]].

* ''VideoGame/WarCraft''

* [[EmpathicWeapon Cursed Sword/Rune Blade]] from the ''VideoGame/{{Record Of Agarest War}}'' series. Sure, they both sound so simple you'd probably think [[TemptingFate "Eh, they don't sound that bad."]], only to face them in combat and find out just exactly why they were sealed in another plane of existence, though the Rune Blade can be safely wielded with some effort to getting it, which isn't easy. Oh, and did you know that you can face [[OhCrap more than one]] in their respective rematches? And their stats are [[UpToEleven upped to absurd amounts]] for their Extended Boundary Plane cousins, have fun with both!

* Several games in the ''{{Mana}}'' series feature floating possessed swords as enemies.

* Not exactly evil, but very ''very'' insane, the soul [[spoiler:of Raziel]] inside the ''[[VideoGame/LegacyOfKain Soul Reaver]]'', which has been in said blade for thousands of years [[spoiler: several times, kind of]], and it feeds off the souls of its slain.

* ''Franchise/FireEmblem''

* ''VideoGame/DragonFable'' has the [[DoomyDoomsOfDoom Doom]] Weapons, which ostensibly exert a corrupting influence over their owners, although this has yet to manifest in any obvious way. It also features the Necrotic Blade of Doom, a much more straight-forward example complete with EvilLaugh, [[LargeHam massive hamishness]], a position on the OmniscientCouncilOfVagueness and [[TheManBehindTheMan obviously being the boss of the]] BigBad. You can either wield them as-is, or you can have Artix purify them to turn them into Destiny Weapons.

* ''Franchise/DragonAge''

** ''VideoGame/DragonAgeII'': Near the end of the first act, an ArtifactOfDoom gets onto the market. Later, [[spoiler: it is used to smith an Evil Sword, and makes Meredith, who was already a KnightTemplar, turn outright evil and crazy (and [[RedEyesTakeWarning make her eyes glow red]]). She eventually tries to use it to become a OneWingedAngel, but that backfires, [[TakenforGranite turning her and the sword to stone]]. Before that, it allowed her to use magic, including [[SuddenlyHarmfulHarmlessObject animating statues]] to [[MalevolentArchitecture fight for her.]]]]

* Desire in ''VisualNovel/EienNoAselia'' tries to force Yuuto to bend to its will through pain. What it wants is for Yuuto to rape, pillage and murder. [[spoiler:Near the end it's revealed that it couldn't really help being like this because it was undergoing the equivalent of prolonged starvation. It also has a little bit of a soft spot.]]

* ''Franchise/TheLegendOfZelda''

* ''VideoGame/{{Darksiders}}''

* ''Videogame/{{Gothic}}'' has the claw of Beliar, a weapon which levels up with you, but requires some of your health each time to do so... you have to sacrifice your health to Beliar, the most evil of the three gods in the game. Additionally to the normal damage, it has a certain chance that an enemy will be killed instantly by Beliar's intervention. When you receive the weapon, you have the option to throw it into the sea because it is evil.

* Gallows Dodger in ''Videogame/SaintsRowGatOutOfHell'' is a sentient pistol shaped like a demon's skull, and is one the [[SevenDeadlySins Seven Deadly Weapons]], representing the sin of Pride. When you first find it, it gets upset at being called "a gun", claiming that it's like calling Jesus "a guy who wore sandals", and claims that it gets antsy when it hasn't killed for a while. When used during combat, it will compliment you on your killing prowess and make dismissive taunts at your enemies, and if used to inflict enough damage in a short period of time, it will enter "Overkill Mode", temporarily granting an increased rate of fire and explosive shots.
* In ''Videogame/LeagueOfLegends'', the Darkin weapons are a series of weapons that corrupt the wielder, eventually taking them over. The champion Aatrox is actually the name of the sword wielded by a nameless gargantuan. Varus is hinted at wielding a Darkin Bow, but not being corrupted - possibly its a symbiotic relationship between the bow's bloodlust and the champions' desire for revenge. The whole schtick of the champion Kayn is he begins each game wielding the corrupting scythe Rhaast, and either succumbs to it or dominates it through the course of each match. Rhaast form is a tanky bruiser, while Shadow Assassin Form is basically ExactlyWhatItSaysOnTheTin.

* ''VideoGame/XenobladeChronicles'': [[spoiler: The [[LegendaryWeapon Monado]] itself, [[LivingWeapon containing the soul]] of EvilGod Zanza. Initially it doesn't do much actively evil besides [[PowerAtAPrice injuring]] or temporarily [[WeaponWieldsYou possessing]] anyone [[OnlyTheChosenMayWield it doesn't want to wield it]], but later on it starts to actively encourage Shulk to give in to violence and revenge. Once Zanza is unleashed, we get to see just how evil he really is, being an OmnicidalManiac that considers all other life nothing but his playthings.]]

[[folder:Web Comics]]

* Mumm-Ra's Sword of Plundarr from ''WesternAnimation/ThunderCats2011'' is outright said by Lion-O to be evil, and we find out that [[spoiler:it was created through the destruction of a galaxy, meaning it's powered by the deaths of billions of lives lost. Interestingly, while the Sword of Omens was forged from the same metal, it is not considered evil, presumably because it was only made from fragments leftover, and was not imbued with the spell that the Ancient Spirits seemed to cast on the Sword of Plundarr.]]

* In ''Literature/WheelOfTime'' there is a Ruby-hilted dagger that contaminates whoever holds it with madness, until its holder dies and passes it to another. Although it doesn't speak, it is referenced as having a will of its own.

* In Wheel of Time there is a Ruby-hilted dagger that contaminates whoever holds it with madness, until its holder dies and passes it to another. Although it doesn't speak, it is refferenced as having a will of its own.

* The Gonne in in Creator/TerryPratchett's ''Literature/MenAtArms'', which wasn't just a powerful weapon, but a weapon that could possess the mind of those who hold it, tempting it with the power it has and what the holder could do with it.

* Several in ''TabletopGame/{{Warhammer}}'' and ''TabletopGame/{{Warhammer 40000}}''. For starters, every single daemon weapon ever. Notable one's include Kingslayer, the sword of Archaeon, the Lord of End Times (''Warhammer Fantasy''), Gorechild[[note]]originally wielded by [[FourStarBadass Primarch]] [[UnstoppableRage Angron]], [[DualWielding in tandem]] with its partner [[ThemeNaming Gorefather]][[/note]], the chain-axe belonging to Kharn the Betrayer (''40k''), and the Primarch Fulgrim in ''40k'' got corrupted by a powerful daemon weapon. The weapon slowly caused him to turn to Chaos, and in the end, [[spoiler:when he refused to obey it, it possessed his body, turning him into a daemon]].

* Cursed Sword/Rune Blade from the ''VideoGame/{{Record Of Agarest War}}'' series. Sure, they both sound so simple you'd probably think [[TemptingFate "Eh, they don't sound that bad."]], only to face them in combat and find out just exactly why they were sealed in another plane of existence, though the Rune Blade can be safely wielded with some effort to getting it, which isn't easy. Oh, and did you know that you can face [[OhCrap more than one]] in their respective rematches? And their stats are [[UpToEleven upped to absurd amounts]] for their Extended Boundary Plane cousins, have fun with both!

* The [[BladeOnAStick glaive]] known as the Whisperer of Souls in an example in ''TabletopGame/{{Pathfinder}}'' mythology. It is the weapon of the LoveGoddess Shelyn and is an inherently evil weapon that delights in drinking souls. Once the glaive eats 100 powerful souls, it will supposedly [[AGodAmI become a god]] and create an era of strife and death. Luckily, Shelyn has been freeing the souls trapped in the glaive with a combination of heroic deeds and {{Incorruptible Pure Pureness}}, keeping the evil weapon in check.

* The Infernal Devices were three super-kick-ass blades from Creator/SimonRGreen's ''Literature/BlueMoonRising''. Subverted a bit, in that these ultra-powerful, ultra-Eeeevil weapons [[spoiler: nevertheless fail to get the job done]].
* The Speaking Gun from the ''Literature/{{Nightside}}'' novels, made out of meat, and capable of unmaking anything by speaking its name in reverse. Created to kill angels, but hateful and eager to kill ''anything''.

* In a ''Manga/{{Bleach}}'' anime-filler-arc-only appearance there are the Bakkōtō swords that -- unlike Zanpakutō who are borne of their users' souls -- are more akin to parasites that will become increasingly powerful with their wielder, but also devour their user eventually. They're outlawed for that very reason.

* ''Manga/InuYasha''

* In an early ''[[ComicBook/TheTransformers Transformers]]'' comic. [[EvilOverlord Megatron]] is damaged and becomes stuck in gun mode with no free will. A petty criminal picks up the super-powerful gun and uses it to become a highly successful criminal, but the experience ends up pretty much ruining his life anyway. To cap it all off, after screwing up the crook's life beyond repair, the gun wakes up, turns into a giant robot, insults him, and leaves.

* The New 52 ''ComicBook/{{Batwoman}}'' series introduces the Ashoth, a sentient sickle that is able to possess someone with a similar bloodthirsty and carnal mindset when grafted to their body.

* In ''Literature/Wheel of Time'' there is a Ruby-hilted dagger that contaminates whoever holds it with madness, until its holder dies and passes it to another. Although it doesn't speak, it is refferenced as having a will of its own.

* In the epilogue of ''VideoGame/DragonAgeOriginsAwakening'', it's heavily implied that [[spoiler: [[InfinityPlusOneSword Vigilance]] becomes one of these. Of course, it was forged with the bone of an ancient evil dragon (whose ghost you had to fight to get the bone) that lived in a swamp that bridged the gap between the physical world and the spiritual one. It would have been a surprise if the thing didn't turn evil.]]

* ''Manga/LoveHina'' had an evil katana that possessed Naru, Keitaro and a monkey. Played mostly for comedy. Then it showed up in ''Manga/MahouSenseiNegima'' -- ''not'' played for comedy (much).
* In ''Anime/MaiHime'', Mikoto's sword Miroku is an aspect of a very malevolent [[EldritchAbomination demonic entity]], and it [[ClingyMacGuffin rarely ever leaves her sight]] [[spoiler:because Mikoto's family had [[{{Tykebomb}} trained her to use it ever since she was little]], and it and [[OrphansPlotTrinket the pendant she wears]] possess mind-controlling powers]].