Urza's Command is a rare Instant card from The Brothers' War Promos (PBRO), collector number 70s. Current market price: — (foil $1.12), TCGplayer market prices via Scryfall.
Choose two — • Creatures you don't control get -2/-0 until end of turn. • Create a tapped Powerstone token. • Create a tapped 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control." • Scry 1, then draw a card.