Hakuryu, the Silent Shock

+1: Hakuryu deals 2 damage to each of up to two target creatures. Those creatures don't untap during their controllers' next untap steps.
0: Until your next turn, whenever a creature attacks you or a planeswalker you control, Hakuryu deals 1 damage to that creature's controller.
-7: Hakuryu deals 5 damage to each creature you don't control. Excess damage is dealt to those creatures' controllers instead.