History Main / WeaponWieldsYou

** Shieldbreaker and Townsaver also have this ability, taking control of their bearer's bodies during battle and directing them, but also not letting them stop until the battle is over.

** Crona has a sword named Ragnarok that is physically part of [[AmbiguousGender their]] body (via his essence being blended with their blood). They always follow its directions, and during fight scenes appears to be to be being dragged around by it.

* In ''VideoGame/BlazBlue'', Noel's [[GunsAkimbo Arcus Diabolus: Bolverk]] apparently does most of the fighting for her, as well as [[MindControl suppressing her emotions]] to some degree. Something of a positive example; it was helping her [[spoiler: keep her OmnicidalManiac tendencies in check]] - when she loses them in the first game, she breaks down in tears and when it happens in the second [[spoiler: (along with a little MindRape from the BigBad) she becomes [[SuperpoweredEvilSide Mu-12]].]] Averted by the time of the third game due to [[spoiler: controlling Mu and Bolverk being broken and rebuilt.]]

* Crona in ''Manga/SoulEater'' has a sword named Ragnarok that is physically part of [[AmbiguousGender their]] body (via his essence being blended with their blood). They always follow its directions, and during fight scenes appears to be to be being dragged around by it.

* In ''TheLiterature/NightsDawnTrilogy'', "Combat nanotics" are a suite of advanced programs [[NeuralImplanting downloaded into the user's neural cybernetics]], which are used in combat to vastly enhance the user's reaction time and automatically strike at the enemy target, turning even an unskilled (but strong) combatant into a whirlwind of death. They can be configured to automatically engage when the user is threatened.

* Happens briefly in "The Lost Episode" of ''WebVideo/AcquisitionsIncorporated'', when Aoefel picks up a cursed sword and fails the Will check to resist its influence (which directs him to slaughter his friends with it). Luckily, he rolls better on the later checks and manages to get rid of the sword before doing any real harm.

* ''Manga/{{Kandachime}}'': Jyatou are demonic swords that take over their wielders, and come in two varieties: Zatsushoku lose control if they're broken or their wielder is disarmed, while Kurogane Shiki permanently take control of their wielders until their host is slain.
* Crona in ''Manga/SoulEater'' has a sword named Ragnarok that is physically part of [[AmbiguousGender their]] body (via his essence being blended with their blood). They always follow its directions, and during fight scenes appears to be to be being dragged around by it.
** It's shown that the "Black Blood" in general does this (and can cause a weapon to overwhelm their meister). For example, when [[spoiler: Maka]]'s using it and acts AxCrazy, her consciousness is basically observing her and finds it embarrassing and [[spoiler: Soul]] has nightmares about absorbing her.
* In ''Manga/InuYasha'', Sesshomaru takes the fangs of one of BigBad Naraku's previous incarnations to the swordsmith Kaijinbo, and commissions him to make a sword from it. He complies, but Tokijin, the resulting sword, takes over the will of anyone trying to wield it. In a display of how powerful Sesshomaru is, when he finally grips its hilt, it tries to work its mojo on him, and he {{No Sell}}s it with barely a glance.

* In ''Manga/{{Guyver}}'' it's largely indicated that the Guyver units affect the host's mind causing them to fight and kill with a greater, more vicious brutality. This is a large plot point of the second live action film when, with no Zoanoids around to kill the Guyver has taken to hunting down and slaughtering regular human criminals with the same savagery it used on the powerful genetic mutations to the point that Shawn no longer feels he's in control and tries to get rid of the armor.

* ''Manga/FlameOfRecca'': weapons created by the bloodthirsty Kaimon are hard to control at best, and can tend to have minds of their own.
* Derflinger in ''Literature/TheFamiliarOfZero'' has the ability to turn his user into a puppet when they are unconscious.
* A rather ambiguous (and positive) example in the climax of ''Anime/MagicalGirlLyricalNanohaStrikers'' provides a somewhat more physical example than most: during a fight late in the show, Subaru is momentarily given a HeroicBSOD in the middle of a battle. Her Intelligent Device, Mach Caliber, is a pair of rocket-propelled roller blades linked to a PowerFist on Subaru's right arm, and proceeds to briefly fight for her by firing its various jets to maneuver the three limbs it can control.

* Parasite-Type Innocence in ''Manga/DGrayMan'' can sometimes keep fighting even when their wearers are unconscious (or unwilling).

* ''Film/RoboCop2014''. When paired off against an ED-208 in the simulator, the cyborg protagonist Murphy turns out to be several seconds slower as his reflexes are affected by human decision-making processes. Under pressure from his boss to get results, Dr. Norton writes Murphy's software so that it takes over in combat situations, while signals are sent into Murphy's brain giving him the illusion of controlling events.

* In the ''Literature/HeraldsOfValdemar'' series, Need does this when carried by a woman without sword skills. Regardless of their skill, she also has a tendency to force her bearer to protect any woman in danger... even if the danger is caused by her attacking Need's bearer! This gets better when the spirit inhabiting the sword wakes up fully and is able to direct her actions rather than just acting on instinct.
* In ''[[Literature/SongOfTheLioness The Woman Who Rides Like A Man]]'' Alanna's crystal sword is empathic but not sentient. It is imbued with magic which amplifies violent tendencies. Several times Alanna is almost killed because she has to stop mid-fight to prevent it taking over and forcing her to kill someone she'd rather just scare off.
* Stormbringer, the black runeblade wielded by [[Literature/TheElricSaga Elric of Melnibone]] in the novels of Creator/MichaelMoorcock, was an EmpathicWeapon with a curious and sometimes hostile relationship with its owner — forcing him, on one occasion, to [[DeaderThanDead kill]] his lover after battling to rescue her.
** In the end, it turns out Stormbringer was never really a sword in the first place. It was actually a powerful demon disguised as a sword that used Elric to destroy and recreate the universe, leaving it as the supreme evil power in the new one. It "rewarded" Elric with a quick death.
* ''Literature/{{Discworld}}'':
** Kring from the first novel, ''Literature/TheColourOfMagic'', is a talking sword who is not so much "empathic" as "annoying", leading at one point to Rincewind being forced to save the others because otherwise Kring would kill him.
** ''Literature/MenAtArms'' features "The Gonne", a firearm that takes control of the mind of its bearer to the point that it aims and fires itself even though the marksman tries to resist it.
* In a non-sword example, necromancers (and Abhorsen) in Creator/GarthNix's ''Literature/OldKingdom'' series need to be careful when using the bells. They are implied to have minds of their own, with particular ones are prone to using a moment of inattention to sound or create their own pattern, often to the wielder's detriment.

* In ''Literature/{{Portlandtown}}'' the Hanged Man's red-handled Colt Walker makes anyone holding it want to use it.
* The titular swords in Literature/DiamondSwordWoodenSword have a similar effect: they affect and take over the mind of the character who wields them, turning them into bloodthirsty racists. The elf slave Agatha, who wielded the Wooden Sword, killed her former kinda-friend Trosha without a second thought, because he was one of the Human oppressors, and later regretted that greatly. Apparently, it only works on natives of Mel'in; Clara Hummel used both at once with no ill effect in the grand finale of the series.

* The titular swords of Creator/TadWilliams' ''Literature/MemorySorrowAndThorn'' trilogy are [[ClingyMacguffin clingy]] {{Empathic Weapon}}s. Due to the unique magic that went into their creation, they are practically living beings, with the ability to perceive and influence the people around them. At the height of their power, they can compel absolute obedience from their bearers.
* The sword Nightblood in ''Literature/{{Warbreaker}}'' has a hypnotic effect on those who get a good look at it, making those with impure hearts fight over it while innocents are repelled and horrified. When someone with an impure heart tries to draw it from the scabbard, it takes them over and makes them attack any other stained souls nearby, and then when it runs out of targets it makes the wielder stab themselves.
* There's also the eponymous weapon of Lawrence Watt-Evans's ''Literature/TheMisenchantedSword''.
* The sword Sikanda from Literature/TheNeverendingStory is a benevolent example. Given to whoever can name her (i.e. a human from outside Fantastica such as Bastian), Sikanda jumps out of her sheath into the wielder's hand when the time is right, such as in defense of her owner, and moves with unmatched expertise. You ''can'' take her out at will, but [[DangerousForbiddenTechnique it is not recommended...]]
* In ''The Literature/NightsDawnTrilogy'', "Combat nanotics" are a suite of advanced programs [[NeuralImplanting downloaded into the user's neural cybernetics]], which are used in combat to vastly enhance the user's reaction time and automatically strike at the enemy target, turning even an unskilled (but strong) combatant into a whirlwind of death. They can be configured to automatically engage when the user is threatened.

* In ''VideoGame/BlazBlue'', Noel's [[GunsAkimbo Arcus Diabolus: Bolverk]] apparently does most of the fighting for her, as well as [[MindControl suppressing her emotions]] to some degree. Something of a positive example; it was helping her [[spoiler: keep her OmnicidalManiac tendencies in check]] - when she loses them in the first game, she breaks down in tears and when it happens in the second [[spoiler: (along with a little MindRape from the BigBad) she becomes [[SuperpoweredEvilSide Mu-12]].]] Averted by the time of the third game due to [[spoiler: controlling Mu and Bolverk being broken and rebuilt.]]

* The Berserker Nobodies in ''VideoGame/KingdomHeartsII'' wield "[[EvilWeapon cursed hammers]]" that visibly drag them around. Sora can steal them -- or Saïx's Claymore, during the fight against him -- with a Reaction Command, and he will be sent careening across the battlefield, hanging desperately onto the weapon while it tears through everything in its path. Similarly, the Lance Soldier Heartless get dragged into their attacks by their lances. The Lance Soldier's reaction command isn't so much Sora flying around with its lance as it is the lance dragging Sora around as it desperately tries to get away from him.

* In ''VideoGame/GuiltyGearTheMissingLink'', the parasite that allowed Zato-1 to manipulate his shadow assumes direct control over him in his ending. It remains in control even after his death in ''X'', which causes it to start [[ParasiteZombie animating his corpse so it can search for a new host]].

* The intelligent MorphWeapon Blackshard in ''Webcomic/{{Darken}}'' sometimes takes control of Komiyan's body to use itself more effectively in battle. [[spoiler:It's the first sign that Blackshard is actually a LeakingCanOfEvil for a powerful {{Body Surf}}ing spirit who wants to possess a proper body.]]

* In ''Manga/StardustCrusaders'', the cursed sword in Egypt is possessed by an autonomous Stand named "Anubis". It has possessed at least 3 different people in the past, causing them to become murderous, and in the present it possesses Polnareff when he holds it, causing him to attack his friends with it.
* In Creator/JunjiIto's one-shot manga ''The Sword of the Reanimator'', the titular sword brings dead people back to life if they are cut by it, and the protagonist uses this ability to bring back his dead grandfather. However, the sword then takes control of them, and kills its previous owner so that it can bond itself to the protagonist, and this causes all the people it had revived to die again.