Archdemon of Unx [Shards of Alara]

Set: Shards of Alara Type: Creature — Demon Rare Cost: {5}{B}{B} Flying, trample At the beginning of your upkeep, sacrifice a non-Zombie creature, then create a 2/2 black Zombie creature token. The necropolis at Unx was once a living city, its streets untrodden by death.