Glaring Fleshraker is a uncommon Creature — Eldrazi Drone card from Modern Horizons 3 (MH3), collector number 7. Current market price: $1.15 (foil $4.88), TCGplayer market prices via Scryfall.
Whenever you cast a colorless spell, create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this token: Add {C}." Whenever another colorless creature you control enters, this creature deals 1 damage to each opponent.