Urza's Command (The Brothers' War)

Instant - Choose two Ñ
¥ 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.