At the beginning of your end step, you may sacrifice a creature. If you do, look at the top X cards of your library, when X is that creature's mana value. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
NM-Mint Foil - $28.10
Lightly Played Foil - $26.70
Moderately Played Foil - $25.30
Heavily Played Foil - $22.50
Damaged Foil - $18.30
NM-Mint Foil Non English - $28.10
Lightly Played Foil Non English - $26.70
Moderately Played Foil Non English - $25.30
Heavily Played Foil Non English - $22.50
Damaged Foil Non English - $18.30