Pawn of Ulamog is a uncommon Creature — Vampire Shaman card from Secrets of Strixhaven Commander (SOC), collector number 223. Current market price: $0.55, TCGplayer market prices via Scryfall.
Whenever this creature or another nontoken creature you control dies, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this token: Add {C}."