Superpower Wiki
Superpower Wiki
"I'm not even human now!"
― Llenn (Sword Art Online Alternative: Gun Gale Online)
"We are the Borg. You will be assimilated. Resistance is futile."
― Borg Collective (Star Trek)

The power to transform people into different creatures. Sub-power of Conversion Manipulation. Opposite to Conversion Negation.

Also Called

  • Racial Conversion
  • Species Conversion/Transmutation
  • Turning


The user can cause things to change in form, character, or function, processing something to change from one form to another, permanently transform other beings into other kinds of creatures, typically the kind they are; for example, vampires transforming humans into other vampires through a bite. The methods used vary depending on the circumstances; generally through blood or bites, sometimes through injection or spells.






Known Users


  • Werewolves (Folklore/Mythology)
  • Undead (Folklore/Mythology)
    • Ghouls
    • Vampires
    • Zombies

Live Television/Movies

  • White Martians (Arrowverse/Supergirl); via to their blood to turn Green Martians into White Martians
  • Wraither Demons (Angel)
  • Vampires (Blade Trilogy)
  • Reapers (Blade II)
  • Vampires (Buffy the Vampire Slayer/Angel)
  • Avatars (Charmed)
  • Spider Demons (Charmed)
  • Vampires (Charmed)
  • Banshees (Charmed)
  • Wendigos (Charmed)
  • Furies (Charmed)
  • Nymphs (Charmed)
  • Enchantress (DC Extended Universe)
  • Ood (Doctor Who)
  • Cybermen (Doctor Who)
  • Krynoids (Doctor Who)
  • The Flood (Doctor Who)
  • The Master (Doctor Who); via the Immortality Gate
  • Gas Mask Zombies (Doctor Who)
    • Jamie/The Empty Child
  • Saturnyns (Doctor Who)
  • Wirrn (Doctor Who)
  • Zygons (Doctor Who)
  • CyberKing (Doctor Who)
  • Adipose (Doctor Who)
  • Fireplace Monsters (Don't Be Afraid of the Dark)
  • Deadites (The Evil Dead)
  • Kal (Halloweentown 2: Kalabar's Revenge); via the Creature Spell and the Grey Spell
  • Dragon King (Legend of Mermaid)
  • Nyx (Once Upon a Time in Wonderland); turns anyone who takes her water into genies
  • Nighloks (Power Rangers Samurai)
  • Borg (Star Trek)
  • Thing Monsters (The Thing)
  • Halflings (True Blood); by using up all of their powers, they become ordinary humans themselves
  • Vampires (Underworld)
  • Lycans (Underworld)
  • Vampires (The Vampire Diaries/The Originals); turn humans and witches into vampires, and siphoners into vampire-witch hybrids
  • Hybrids (The Vampire Diaries/The Originals); turn humans and witches into vampires, and siphoners into vampire-witch hybrids
  • Klaus (The Vampire Diaries/The Originals); turn humans and witches into vampires, werewolves into vampire-werewolf hybrids, and siphoners into vampire-witch hybrids
  • Hope Mikaelson (The Vampire Diaries/The Originals); turn humans and witches into vampires, werewolves into vampire-werewolf hybrids, and siphoners into vampire-witch hybrids
  • Penelope Gardiner/Athena Browning (Witches of East End); via Power Absorption for Humanization
  • Witches and Warlocks (Witches of East End); turn humans into witches via Magic
  • Chihiro/Kamen Rider Amazon Neo (Kamen Rider Amazons)


  • Characters with morphing powers (Animorphs); permanently become one creature if they stay transformed for longer than two hours
  • Wizards and Witches (Harry Potter); via advanced Transfiguration
  • Vampires (Shadow Falls)
  • Werewolves (Shadow Falls)
  • Vampires (The Shadowhunter Chronicles)
  • Werewolves (The Shadowhunter Chronicles)
  • Vampires (Twilight series)
  • Werewolves (Twilight Saga)
  • Vampires (The Vampire Chronicles)
  • Psychosoma (Worm)
  • Mr. Bough/The Ophion Titan (Worm)
  • Lab Rat (Worm)
  • Cauldron Via vials (worm)
  • Monsters (City of Devils)


  • Skinner Sweets (American Vampire)
  • Vampires (DC Comics)
  • Axos (Doctor Who: The Golden Ones); via Goruda Brain Tonic
  • Sil (Gold Digger)
  • Malebolgia (Image Comics)
  • Vampires (Marvel Comics)
  • Brood (Marvel Comics)
  • Prime Sentinels (Marvel Comics)
  • Ravna (Star Wars)
  • Rakghouls (Star Wars Legends)

Video Games

  • Joseph Bertrand III (inFAMOUS 2)
  • Bloody Mary (inFAMOUS 2: Festival of Blood)
  • Firstbloods (inFAMOUS 2: Festival of Blood)
  • Heartless (Kingdom Hearts)
  • Joker (Batman: Arkham)
  • Nobodies (Kingdom Hearts)
  • Shadow Beasts (The Legend of Zelda: Twilight Princess)
  • Shroobs (Mario & Luigi: Partners in Time)
  • Ing/Darklings (Metroid Prime 2: Echoes)
  • Succubi (Monster Girl Quest)
  • The Infected (Prototype)
  • Zombies (Resident Evil)
  • Sin Eaters (Final Fantasy XIV)


  • Krylock Demon (American Dragon: Jake Long)
  • Pure Elementals (Adventure Time)
  • Lumpy Space People (Adventure Time)
  • Ectonurites (Ben 10)
    • Zs'Skayr (Ben 10)
  • Diagon (Ben 10: Ultimate Alien)
  • Xenocytes/DNAliens (Ben 10: Alien Force/Ultimate Alien)
  • Dracule (Dragon Eye)
  • Necromorphs (Dead Space)
  • Chupacabra (Jackie Chan Adventures)
  • Elizabeth Frankenstein (Mary Shelley's Frankenhole)
  • Gabriel Agreste/Hawk Moth (Miraculous: Tales of Ladybug & Cat Noir)
  • Darkblade (Miraculous: Tales of Ladybug & Cat Noir)
  • Pharaoh (Miraculous: Tales of Ladybug & Cat Noir)
  • Puppeteer (Miraculous: Tales of Ladybug & Cat Noir)
  • Gamer (Miraculous: Tales of Ladybug & Cat Noir)
  • Doof "zombies" (Phineas and Ferb: Night of the Living Pharmacist)
  • Aparoids (Star Fox: Assault)
  • Kanshuu (World Embryo)


  • Users of the Founding Titan's power (Attack on Titan)
  • Zeke Yeager (Attack on Titan)
  • Demons (Demon Slayer: Kimetsu no Yaiba)
    • Muzan Kibutsuji
    • Tamayo
  • Karasumi (Hiniiru)
  • Slash (Jibaku-kun: Twelve World Story)
  • Sailor Moon (Sailor Moon); using the Silver Crystal
  • Methuselah (Trinity Blood)


  • Urdlen (Forgotten Realms)
  • Certain Monsters (Monster Girl Encyclopedia)
    • Anubis; via mummy curse
    • Apophis; via Aphophis neurotoxin
    • Succubi/Incubi; via demon energy transfusion
    • Werewolves
  • UIU File 1948-019 (SCP Foundation)
  • The Bastard (Whateley Academy)

Known Objects

  • Titan Serum (Attack on Titan)
  • Hōgyoku (Bleach)
  • Old Blood (Bloodborne)
  • Cagaster Disease (Cagaster of An Insect Cage)
  • Pontiff's Left Eye and Pontiff's Right Eye (Dark Souls III)
  • Electro Axe (DC Extended Universe)
  • Goruda Brain Tonic (Doctor Who)
  • Immortality Gate (Doctor Who)
  • Invincishroom (Mario & Luigi: Superstar Saga)
  • M.U.L.C.H (Milo Murphy's Law: The Phineas and Ferb Effect); transforms humans into Pistachion
  • Butterfly/Moth Miraculous (Miraculous: Tales of Ladybug & Cat Noir)
  • Mortal Cup (The Mortal Instruments); transforms humans into Shadowhunters
  • Infernal Cup (The Mortal Instruments); transforms Shadowhunters into Endarkened
  • Tunguuk's Mask (My Babysitter's a Vampire); transforms whoever is in a costume into that character
  • Heart Stone (My Fairy Tail Love Story); transforms whoever touches it into a mermaid/merman
  • Pearl of Transformation (My Little Pony: Friendship is Magic)
  • God Tree (Naruto)
  • Genie Lamp (Once Upon a Time in Wonderland)
  • Doofenshmirtz's Repulse-inator (Phineas and Ferb: Night of the Living Pharmacist)
  • Silver Crystal (Sailor Moon)
  • Lightstar Crystal (Skeleton Warriors); transforms humans into Skeletons
  • The Muur Talisman (Star Wars Legends)
  • Magic Meat/Fofoo (Transformers Rescue Bots); transforms whoever consumes it into hairy beast during the night
  • Helheim Fruits (Kamen Rider Gaim); transforms whoever consumes it into Inves

Known Locations

  • Moon Pool (H2O: Just Add Water/Mako Mermaids); transforms humans into merpeople
  • Planet Geo (Guy: Double Target)
  • Okami Mountain Spring (Majimoji Rurumo); transforms humans into wolves

See Also

For fan-fictional to non-canon characters, see here.