Battle for Zendikar — Uncommon
Creature — Eldrazi Drone
Devoid (This card has no color.)
When Catacomb Sifter enters the battlefield, put a 1/1 colorless Eldrazi Scion creature token onto the battlefield. It has "Sacrifice this creature: Add to your mana pool."
Whenever another creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)