Alibou, Ancient Witness is a mythic Legendary Artifact Creature — Golem card from Edge of Eternities Commander (EOC), collector number 113. Current market price: $0.28, TCGplayer market prices via Scryfall.
Other artifact creatures you control have haste. Whenever one or more artifact creatures you control attack, Alibou deals X damage to any target and you scry X, where X is the number of tapped artifacts you control.