Consuming Oni 
Creature — Ogre Demon
Flying, menace At the beginning of your end step, a random nonland card in your hand perpetually gains "When you cast this spell, you lose 3 life."
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL