Volibear, Crashing Storm

+2: Volibear deals up to 2 damage divided as you choose. Creatures damaged this way don't untap during their controller's next untap step.
0: Volibear, Crashing Storm becomes a 4/4 bear creature and gains trample, indestructible, and prowess until end of turn.
-8: Draw 2 cards. Instant and sorcery spells you control gain cascade, storm, and retrace until your next turn.