Koh, the Face Stealer

Changeling (This card is every creature
type.)
Koh, the Face Stealer has all abilities of all exiled creatures.
Whenever Koh, the Face Stealer deals combat
damage to a player, you may pay {3}{b}. If you do,
exile target tapped creature an opponent controls
and put a +1/+1 counter on Koh.