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Double-Edged Power

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The circumstance in which the user possesses great strength and ability at a cost. Not to be confused with Aversion.

Also Called

  • Equivalent Exchange
  • Faustian Powers
  • Power at a Price


The user possesses great skill and power, but prolonged usage of it may come at a cost. Overuse or misuse of said power may result in, among other things, insanity and physical damage to the user's body.



  • Some double-edged powers may effect people other than the user.

Known Users


  • Mozenrath (Aladdin: The Animated Series); via Gauntlet
  • Avatars (Avatar: The Last Airbender); via the Avatar State
  • Gwen Tennyson (Ben 10)
  • Darkwing Duck (Darkwing Duck); via former use of Super Speed powers
  • Eli Shane (Slugterra); using the double barrel with the wrong slugs for a fusion shot could cause disastrous results like draining all the energy of surrounding slugs or worse


  • Flash (DC Comics); via Speed Force
  • Kid Psycho (DC Comics)
  • Superman (DC New 52); via Solar Flare
  • Zombie Spider-Man (Marvel Comics); using his own veins and arteries as webbing causes him intense pain
  • Masane Amaha (Witchblade)


  • Dark Wizards (Harry Potter); especially when creating Horcruxes
  • Mundanes (Shadowhunter Chronicles); via Lilith's blood
  • Various Sith (Star Wars)
  • Spirit users (Vampire Academy/Bloodlines)
  • Fanoxean (The Young Guardians)


  • Caleb (The Covenant); after his ascension.
  • Godzilla (Godzilla)

Live Action TV

  • Willow Rosenberg (Buffy the Vampire Slayer)
  • Cordelia Chase (Buffy the Vampire Slayer/Angel)
  • Dr. Curtis Williamson (Charmed)
  • Hiro Nakamura (Heroes)
  • Peter Petrelli (Heroes)
  • Sylar (Heroes)
  • Magic Users (Once Upon A Time)
  • Castiel (Supernatural)
  • Users of the Mark of Cain (Supernatural)
  • Sam Winchester (Supernatural); via Demon Blood


  • Julie Sigtuna (Absolute Duo)
  • Dark Schneider (Bastard!!); via Judas Pain
  • Untrained Tao users (Black Cat)
  • Est Contractors (Bladedance of Elementalers)
  • Bount (Bleach); via Dolls
  • Uryu Ishida (Bleach); via taking off the Sanrei Glove
  • Sajin Komamura (Bleach)
  • Ichigo Kurosaki (Bleach); via using the Final Getsuga Tensho and controlled by his hollow self
  • Shunsui Kyoraku (Bleach); via his Bankai
  • Retsu Unohana (Bleach); via her Bankai
  • Kanade Sakurada (Castle-Town Dandelion)
  • Shunsuke Otosaka (Charlotte)
  • Yuu Otosaka (Charlotte)
  • All ability users and Rare Kinds (Code:Breaker)
  • Contractors except Hei (Darker than Black); they required to perform a task in order to use their powers
  • Humans who make a deal for the Shinigami Eyes (Death Note)
  • Goku (Dragon Ball); via Kaioken
  • Saiyans (Dragon Ball); via Great Ape form and Super Saiyan Third Grade
  • Tenshinhan (Dragon Ball); via Kikoho
  • Ultimate Shenron (Dragon Ball GT)
  • Frieza (Dragon Ball Z)
  • Kyouka (Fairy Tail)
  • Ultear Milkovich (Fairy Tail); via Last Ages
  • Alchemists (Fullmetal Alchemist)
    • Alphonse Elric
    • Edward Elric
  • Hatsuna Wakabayashi (Gokukoku No Brynhildr)
  • Issei Hyoudou (High School DxD); via Juggernaut Drive
  • Seidou Goui Users (History's Strongest Disciple Kenichi)
  • Toori Aoi (Horizon In The Middle of Nowhere); via getting sad/upset will cause death
  • Sakuma Jirou (Inazuma Eleven); Via Emperor Penguin no01 causes bone and muscle tissues to break down after 2nd use
  • Genda Koujirou (Inazuma Eleven); via Beast Fang, causes bone and muscle tissues to break down after 2nd use
  • InuYasha (InuYasha)
  • Miroku (InuYasha)
  • Eucliwood Hellscythe (Kore wa Zombie Desuka?) when she heals someone she feels the pain inflicted. Talking give's reality warping powers but headaches
  • Megumin (Konosuba)
  • Refal (Legend of the Legendary Heroes)
  • Tigre Vorn (Madan no Ou to Vanadis); via The Black Bow
  • Negi Springfield (Mahou Sensei Negima!) via Magia Erebea
  • Kōta Shibaki (Majmoji Rurumo); via Wish Tickets
  • Users of "One For All" (My Hero Academia)
  • Denki Kaminari (My Hero Academia)
  • Minoru Mineta (My Hero Academia)
  • Rikidou Satou (My Hero Academia)
  • Hanta Sero (My Hero Academia)
  • Tetsutetsu Tetsutetsu (My Hero Academia)
  • Thirteen (My Hero Academia)
  • Shouto Todoroki (My Hero Academia)
  • Fukikage Tokoyami (My Hero Academia)
  • Ochako Uraraka (My Hero Academia)
  • Cursed Seal users (Naruto)
  • Might Guy (Naruto); via opening the Eight Inner Gates
  • Kakashi Hatake (Naruto); via former use of Sharingan eye
  • Rock Lee (Naruto); via opening the Eight Inner Gates
  • Sharingan users (Naruto); via use of Izanagi and Izanami powers, losing sight in the eye forever
  • Tsunade (Naruto); via the Creation Rebirth Technique
  • Sasuke Uchiha (Naruto); via former usage of Cursed Seal of Heaven and Mangekyo Sharingan
  • Naruto Uzumaki (Naruto); via former usage of Rasenshuriken and Fox Shroud
  • Eve Neuschwanstein (Needless); via Doppelganger's energy use
  • Tony Tony Chopper (One Piece); formerly over-dosage of the Rumble Ball (pre-timeskip), now able to need only one for Monster Point
  • Monkey D. Luffy (One Piece); via Gear Second or Gear Fourth
  • Marshall D. Teach (One Piece); more susceptible to pain via gravity-element drawback
  • Tsumegeri Guards (One Piece); via Hero Water
  • Limiter Breakers (One Punch Man)
  • Gene Starwind (Outlaw Star); via use of #4, #9, and #13 Caster Shells
  • Aun Freya (Photon: The Idiot Adventures)
  • Celebi (Pokemon Adventures); from forced time travel
  • Tsukune Aono (Rosario + Vampire)
  • Ruby Tojo (Rosario + Vampire); via Iron Maiden
  • Yukishiro Enishi (Rurouni Kenshin)
  • Kazuma (s-CRY-ed)
  • Refined Alters (s-CRY-ed)
  • Sailor Moon (Sailor Moon); via the Legendary Silver Crystal
  • Sailor Saturn (Sailor Moon); using her full destructive and deathly powers also causes her to perish
  • Ruki (Senyu)
  • Shana (Shakugan No Shana); via Tenpa Josai
  • Toriko (Toriko); via his Original Appetite Demon
  • Hiei (Yu Yu Hakusho); via using the Kokuryuha
  • Younger Toguro (Yu Yu Hakusho)
  • Lestion (Yumekui Merry); via firing his gun
  • Riou (Zatch Bell!); via performing his family's curse.

Video Games

  • Asura (Asura's Wrath); via his Wrath Form
  • ADAM users (Bioshock)
  • Non-Belmont users of the Vampire Killer (Castlevania)
  • Power within users (Dark Souls)
  • Blood Mages (Dragon Age)
  • Crusader (Final Fantasy VI)
  • Azura (Fire Emblem Fates)
  • Sora (Kingdom Hearts); via Anti-Form
  • Raziel (Legacy of Kain)
  • Users of Phazon-Enhancement Devices (Metroid Prime 3: Corruption)
  • Pokémon that know Perish Song (Pokémon)
  • Pokémon that know recoil inflicting attacks (Pokémon)
  • Albert Wesker (Resident Evil)
  • Zephyr (Resonance of Fate)
  • Metal Sonic (Sonic the Hedgehog); via V. Maximum Overdrive Attack
  • Shadow the Hedgehog (Sonic the Hedgehog); without Inhibitor Rings
  • Shirou Emiya (TYPE-MOON); after fusing with Archer's arm
  • Shiki Tohno (TYPE-MOON)
  • Deathwing (World of Warcraft)

Known Objects

  • Mozenrath's Gauntlet (Aladdin)
  • Bakkōtō (Bleach)
  • Soulcutter (Book of Swords)
  • Beast Spear (Breath of Fire III)
  • Most Cursed Tools (C3: CubexCursedxCurious)
  • Boots of Blinding Speed (The Elder Scrolls III: Morrowind)
  • Darkness ÄRMs (Marchen Awakens Romance)
  • Wish Tickets (Majimoji Rurumo)
  • Akimichi Three-Colored Pills (Naruto)
  • Hero Water (Naruto)
  • Reject Dial (One Piece)
  • Energy Steroids (One Piece)
  • Mark of Cain (Supernatural)
  • Silver Crystal (Sailor Moon)

Known Powers

  • Fairy Law (Fairy Tail)
  • Lucid Gadget (Dream Eater Merry); when used in reality
  • Blastor Mode (Tekkaman)





Live Action TV


Video Games

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