Llanowar Metamorphosist

{t}: Add {g} or {u} to your mana pool and put a time counter on Llanowar Metamorphist. Flip a coin for each charge counter on Llanowar Metamorphist. You may search your library for a creature card with a converted mana cost lower than the number of flips you won. If you do, put it onto the battlefield and sacrifice Llanowar Metamorphosist.