Exuberant Wolfbear 
Creature — Wolf Bear
Whenever this creature attacks, you may change the base power and toughness of target Human you control to this creature's power and toughness until end of turn.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL