Night Guy, Taijutsu God

-1: For each opponent, destroy up to one target nonland permanent that player controls. You lose 2 life for each creature destroyed this way.
-3: Ninja creatures you control get +2+0 and gain trample until end of turn. You lose life equal to the greatest power among creatures you control.
-7: Night Guy deals 3 damage to each opponent unless they discard a card at random. Repeat this process six more times. You lose 10 life.