Fatalis, Fury Incarnate

+1: Fatalis does 2 damage to target one of your creatures and 5 damage to target opponent creature
-3: Fatalis becomes a 10/10 Dragon creature with flying, deathtouch, indestructible and menace until end of turn. Fatalis cannot enter the graveyard.
-7: Fatalis deals 5 damage to all your creatures and destroys all opponent creatures