Altar Golem is a rare Artifact Creature — Golem card from Eventide (EVE), collector number 166. Current market price: $0.45 (foil $2.25), TCGplayer market prices via Scryfall.
Trample Altar Golem's power and toughness are each equal to the number of creatures on the battlefield. This creature doesn't untap during your untap step. Tap five untapped creatures you control: Untap this creature.