Planechase Anthology Planes

Lair of the Ashen Idol

At the beginning of your upkeep, sacrifice a creature. If you can't, planeswalk.
Whenever you roll {Chaos}, any number of target players each put a 2/2 black Zombie creature token onto the battlefield.

At the beginning of your upkeep, sacrifice a creature. If you can't, planeswalk.
Whenever chaos ensues, any number of target players each create a 2/2 black Zombie creature token.

Planechase 2012 Planes

At the beginning of your upkeep, sacrifice a creature. If you can't, planeswalk.
Whenever you roll chaos, any number of target players each put a 2/2 black Zombie creature token onto the battlefield.