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"I've demonstrated there's no difference between me and everyone else! All it takes is one bad day to reduce the sanest man alive to lunacy. That's how far the world is from where I am. Just one bad day."
― The Joker (Batman The Killing Joke)
"You didn't think I would risk losing the battle for Gotham's soul in a fist fight with you. No, you need an ace in the hole. Mine's Harvey. I took Gotham's white knight and brought him down to our level. It wasn't hard. See madness, as you know, is like gravity. All it takes is a little push."
― The Joker, The Dark Knight

The ability to cause others to go insane. Sub-power of Madness Manipulation. Variation of Mental Inducement. Opposite to Sanity Inducement.

Also Called

  • Craziness Inducement
  • Delirium Inducement
  • Insanity Induction
  • Madness Inducement
  • Mind Blasting/Blowing/Breaking


User can cause madness in a person or group of people that have no mental illness, depending of the users will victims may go slightly loopy or lose total grip of reality, becoming delusional, lose control over themselves, paranoid, catatonic or hostile.





Known Users

  • Daniel Armand (The 4400)
  • Yakko, Wakko, and Dot (Animaniacs)
  • Thesulac Demons (Angel)
  • Lorophage Demons (Angel & Faith)
  • Lucy (Agents of S.H.I.E.L.D.)
  • Toepick (Ben 10 Omniverse)
  • Hazama/ Yūki Terumi (BlazBlue)
  • Great Ones (Bloodborne)
  • Celestial Children (Bloodborne); via Frenzy bite
  • Winter Lanterns (Bloodborne); via Frenzy
  • Glorificus "Glory" (Buffy the Vampire Slayer); a Side-effect of feeding
  • Cthulhu (Cthulhu Mythos)
  • Doctor Psycho (DC Comics)
  • Joker (DC Comics); via Joker Gas
  • Count Vertigo (DC Comics)
  • Delirium of the Endless (DC Comics/Vertigo)
  • Herman Carter/The Doctor (Dead by Daylight); via Carter's Spark
  • The Brethren Moons (Dead Space)
  • Sheogorath (The Elder Scrolls)
  • The Ancients (Eternal Darkness: Sanity's Requiem)
    • Mantorok
    • Chattur'gha
    • Ulyaoth
    • Xel'lotath
  • Black Guardians (Eternal Darkness: Sanity's Requiem)
  • Bonethieves (Eternal Darkness: Sanity's Requiem)
  • Gatekeepers (Eternal Darkness: Sanity's Requiem)
  • Guardians (Eternal Darkness: Sanity's Requiem)
  • Horrors (Eternal Darkness: Sanity's Requiem)
  • Trappers (Eternal Darkness: Sanity's Requiem)
  • Vampires (Eternal Darkness: Sanity's Requiem)
  • Worms (Eternal Darkness: Sanity's Requiem)
  • Zombies (Eternal Darkness: Sanity's Requiem)
  • Bill Cipher (Gravity Falls)
  • Dionysus/Bacchus (Greco-Roman Mythology)
  • Cruciatus Curse users (Harry Potter)
  • Ace (Justice League/Justice League Unlimited)
  • Lucifer Morningstar (Lucifer)
  • Madcap (Marvel Comics)
  • Reapers (Mass Effect); via Indoctrination
  • Loki (Norse Mythology)
  • Dionysus "Mr. D"/Bacchus (Percy Jackson and the Olympians)
  • Goro Akechi/Crow (Persona 5/Persona 5 Royal); via Loki
  • Pirsoyn (Shakugan no Shana)
  • The Faceless Ones (The Skulduggery Pleasant Series)
  • Slender Man (Slender Man Mythos)
  • Zalgo (Creepypasta)
  • Asura (Soul Eater)
  • All Kishin and some Witches (Soul Eater)
  • Sith (Star Wars)
  • Medusans (Star Trek); should one survive looking at their true form
  • Pennywise the Dancing Clown/It (Stephen King's It)
  • Eto Yoshimura (Tokyo Ghoul)
  • Reisen Udongein Inaba (Touhou Project)
  • Clownpiece (Touhou Project)
  • Malkavian Vampires (Vampire: The Masquerade); via Dementation
  • Madness of Deathwing (Warcraft)
  • Old Gods (Warcraft)
  • Simurgh (Worm)
  • Zofis (Zatch Bell!)
  • Gaunter O'Dimm (The Witcher 3: Wild Hunt)
  • Talion/Celebrimbor (Middle-Earth: Shadow of Mordor/War)
  • Charlie (Don't Starve)
  • Various SCPs (SCP Foundation)

Known Objects

Known Locations

  • The Veil (Veil of Madness)

Known Powers

  • Crown of madness spell (Dungeons & Dragons)