Graaz, Unstoppable Juggernaut is a rare Legendary Artifact Creature — Juggernaut card from Phyrexia: All Will Be One Promos (PONE), collector number 229p. Current market price: $0.43 (foil $0.37), TCGplayer market prices via Scryfall.
Juggernauts you control attack each combat if able. Juggernauts you control can't be blocked by Walls. Other creatures you control have base power and toughness 5/3 and are Juggernauts in addition to their other creature types.