Knockout Maneuver (Secrets of Strixhaven Mystical Archive #119)

Sorcery - {2}{G}
Put a +1/+1 counter on target creature you control, then it deals damage equal to its power to target creature an opponent controls.
„「獅子と一角獣、どちらが勝つと思う？」
――サナールからキーロルへ“