Mahana Of the Desprate

When this creature enters the battlefield, sacrifice
X other creatures. Search for your library and
exile up to X instants and/or sorceries that cost
up to X more than the creature sacrificed. You
may cast those instants or sorceries without
paying there mana cost. shuffle your library afterwards
{p/b}{p/r}{p/u}{t}, sacrifice a creature: search your library
for an instant or sorcery equal to the cost of the creature, and put it into your hand. shuffle your
library afterwards.