Catacomb Sifter is a uncommon Creature — Eldrazi Drone card from Battle for Zendikar (BFZ), collector number 201. Current market price: $0.24 (foil $1.90), TCGplayer market prices via Scryfall.
Devoid (This card has no color.) When this creature enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add {C}." Whenever another creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom.)