The circumstance of gaining power, skills, and enhancements from past experience.


Circumstance grants the user extraordinary abilities by either scientific or supernatural experimentation, accidents, medical treatment, etc. The effects of the event may grant superpowers to the user if they survive, or sometimes even if they don’t. Powers granted to the user by the event may be scientifically inclined if anthropogenic or supernatural if otherwise. Depending on the event in question, powers might be a gift, a curse, or both.




  • User may develop Aversion.
  • User has limited to absolutely no control over the outcome of their catalyst event.
  • User may often obtain an undesired power.
  • Disfigurement is common.
  • Regulation or even Dependency may be an issue if a catalyst event destabilizes the user in some way.
  • May cause the user mental/physical problems.
  • User may require certain objects to utilize their powers.

Known Users


  • The Flash (DC Comics); lightning and chemicals
  • Ethan Avery/Damage (DC Comics); experimentation
  • Poison Ivy (DC Comics); experimentation
  • Solomon Grundy (DC Comics); supernatural reanimation
  • Peter Parker/Spider-Man (Marvel Comics); bitten by a radioactive spider
  • Miguel O'Hara/Spider-Man 2099 (Marvel Comics); experimentation
  • The Lizard (Marvel Comics); experimentation
  • Hulk (Marvel Comics); exposure to gamma radiation
  • She-Hulk (Marvel Comics); blood transfusion
  • Captain America (Marvel Comics); super soldier serum
  • Isaiah Bradley (Marvel Comics); super soldier serum
  • Elijah Bradley/Patriot (Marvel Comics); blood transfusion
  • Melati Kusuma/Komodo (Marvel Comics); Lizard serum
  • Fantastic Four (Marvel Comics); bombardment by cosmic rays
  • Matthew "Matt" Murdock/Daredevil (Marvel Comics); blinded by radioactive waste
  • Wade Wilson/Deadpool (Marvel Comics); experimentation
  • V (V for Vendetta); experimentation and torture as part of a bioweapons program


  • Clayface (Batman: The Animated Series); assassination attempt.
  • Virgil Hawkins/Static (Static Shock); exposed to chemicals.
  • Bang Babies (Static Shock); exposed to chemicals.


  • Adaline Bowman (The Age of Adaline); car crash into a river coupled with a strike of lightning.

Known Objects

  • Chemical X (The Powerpuff Girls)
  • Power Rings of Inspiron (Super Buddies)
  • Mutagen (Teenage Mutant Ninja Turtles)
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