The Forgotten Westshore

({t}: add {u}.)
{u}, {t}: Exile target creature you control. The Forgotten Westshore does not untap during your next untap step.
{4}{u}, {t}: Return target creature exiled with The Forgotten Westshore onto the battlefield under your control. If three or more creatures have been returned to the battlefield this way, exile The Forgotten Westshore and put all creature cards exiled with it into their owners' graveyards.