Siora, Voice of the Woods

Protection from mana value less than your
devotion to white (Each {w} in the mana
costs of permanents you control counts toward
your devotion to white.)
{3}{g}, {t}: Scry 1, then look at the top card of
your library. If it's a creature card with power
less than your devotion to green, you may put
it onto the battlefield.