Volrath, the Shapestealer

Volrath, the Shapestealer

Legendary Creature - Phyrexian Shapeshifter | Power/Toughness: 7 / 5 (CMC 5)
At the beginning of combat on your turn, put a -1/-1 counter on up to one target creature.
: Until your next turn, Volrath, the Shapestealer becomes a copy of target creature with a counter on it, except it's 7/5 and it has this ability.