Urza, Prince of Kroog is a rare Legendary Creature — Human Artificer card from The Brothers' War (BRO), collector number 296. Current market price: $0.51 (foil $1.12), TCGplayer market prices via Scryfall.
Artifact creatures you control get +2/+2. {6}: Create a token that's a copy of target artifact you control, except it's a 1/1 Soldier creature in addition to its other types.