Birthing Pod

( {p/g} may be paid for with either {g} or 2 life.)
{1}{p/g}, {t}, Sacrifice a creature: Search your
library for a creature card with converted
mana cost equal to 1 plus the sacrificed
creature's converted mana cost, put it
onto the battlefield, then shuffle your
library. Activate this ability only any time
you could cast a sorcery.