Oko, the Trickster

Oracle Text

+1: Put two +1/+1 counters on up to one target creature you control.

0: Until end of turn, Oko, the Trickster becomes a copy of a target creature you control. Prevent all damage that would be dealt to him this turn.

-7: Until end of turn, each creature you control has base power/toughness 10/10 and gains trample,

— Loyalty 4