Colossus of the Blood Age is a uncommon Artifact Creature — Construct card from Secrets of Strixhaven (SOS), collector number 181. Current market price: $0.17 (foil $0.21), TCGplayer market prices via Scryfall.
When this creature enters, it deals 3 damage to each opponent and you gain 3 life. When this creature dies, discard any number of cards, then draw that many cards plus one.