Mark of the Oni

Enchantment - Aura, 2B (3)
Enchant creature
You control enchanted creature.
At the beginning of the end step, if you control no Demons, sacrifice Mark of the Oni.¹
“As more oni walked Kamigawa, more darkness infested its inhabitants' souls.” - The History of Kamigawa
Illus. Heather Hudson

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/8)	Betrayers of Kamigawa (Uncommon)