Realms of Possibility

Realms of Possibilty enters the battlefield tapped.
{t}: Add {g} to your mana pool.
{t}, Pay 1 life: Add {w} or {u} to your mana pool.
{3}{g}{w}{u}, {t}, Sacrifice Realms of Possibility: Return target creature card from your graveyard onto the battlefield with a dream counter on it. Activate this ability only any time you could activate a sorcery.