Fox, Sarcastic Changeling

+2: Choose a creature type: Creatures you control are the chosen type in addition to their other types until end of turn
-1: Fox, Sarcastic Changeling becomes a copy of a target creature until end of turn, except it's a 1/1 with haste, indestructible and hexproof
-6: Choose a keyword: Creatures you control gain that keyword until end of turn