Void Attendant is a uncommon Creature — Eldrazi Processor card from Outlaws of Thunder Junction Commander (OTC), collector number 212. Current market price: $0.30, TCGplayer market prices via Scryfall.
Devoid (This card has no color.) {1}{G}, Put a card an opponent owns from exile into that player's graveyard: Create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add {C}."