Ranrua Splittongue

Prowess
{2}{b},{t}: Exile target creature with Toughness lower than Ranrua's Power until Ranrua leaves the battlefield. Put a Coil Counter on it. Only 1 card may be in exile this way.
{b}{b}: Put a Coil Counter on a card exiled by Ranrua. If it has 3 more, put the card into it's owner's graveyard.
Remove all Coil Counters from a card exiled by Ranrua: Return that card to the battlefield under it's owner's control.