Brood Monitor is a uncommon Creature — Eldrazi Drone card from The List (PLST), collector number BFZ-164. Current market price: $0.12, TCGplayer market prices via Scryfall.
Devoid (This card has no color.) When this creature enters, create three 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this token: Add {C}."