Kozilek's Shrieker is a common Creature — Eldrazi Drone card from Oath of the Gatewatch (OGW), collector number 73. Current market price: $0.05 (foil $0.33), TCGplayer market prices via Scryfall.
Devoid (This card has no color.) {C}: This creature gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures. {C} represents colorless mana.)