Final Confrontation

You may only have one copy of Final
Confrontation in your deck.
Final Confrontation costs {1} more to cast for
each creature your opponents control and {1} less to cast for each creature you control.
You gain 5 life and draw a card. Destroy all black creatures. Final Confrontation deals 3
damage to any target. Target creature gets
+2/+2 until end of turn.