flavorText: "As more oni walked Kamigawa, more darkness infested its inhabitants' souls."
  —*The History of Kamigawa*
name: Mark of the Oni
originalText: You control enchanted creature.
  At end of turn, if you control no Demons, sacrifice Mark of the Oni.
printings: BOK
text: Enchant creature
  You control enchanted creature.
  At the beginning of the end step, if you control no Demons, sacrifice this Aura.
type: Enchantment — Aura