Arias, Lawbreaker

+1: Detain Target Creature (Until your next turn, that permanent can't attack or block and its activated can't be countered.)
-3: Arias, Lawbreaker deals 3 damage to each creature an opponent controls. Tap each creature Arias, Lawbreaker damaged without flying.
0: Until end of turn, Arias becomes a 4/4 Elf with flying that's still a planeswalker. Prevent all damage that would be dealt to him this turn.