Thief of Existence is a rare Creature — Eldrazi card from Modern Horizons 3 (MH3), collector number 174. Current market price: $0.30 (foil $0.36), TCGplayer market prices via Scryfall.
Devoid (This card has no color.) When you cast this spell, exile up to one target noncreature, nonland permanent an opponent controls with mana value 4 or less. If you do, Thief of Existence gains "When this creature leaves the battlefield, target opponent draws a card."