Strange Forces Exorcised from Arkham! is a mythos card. It first appeared in the Miskatonic Horror expansion.
Mythos Type: Headline
Gate Opens: Esoteric Order of Dagon or Unvisited Isle
Clue Appears At: Devil Reef or Science Building
Mythos Ability: Until the end of next turn, any time an investigator draws 1 or more Spells for any reason, he draws 1 fewer card (to a minimum of 0). Leave this card in play to indicate this.