Zetsu, Master Infiltrator

Changeling, Shadow, Shroud
Whenever Zetsu Master Infiltrator deals
combat damage to a player, that player
reveals their hand. You may exile a
creature card from that player's hand.
{x}{b/g}: Until the end of this turn, Zetsu
Master Infiltrator becomes a copy of target
exiled creature with mana value equal to X
with this ability.