At the beginning of your end step, if you control a creature, look at the top seven cards of your library. Then you may sacrifice a creature. If you do, you may put a creature card with mana value X or less from among those cards onto the battlefield, where X is 1 plus the sacrificed creature's mana value. Put the rest on the bottom of your library in a random order.
Near Mint - $4,900
Lightly Played - $4,000
Moderately Played - $3,500
Heavily Played - $3,000
Damaged - $2,500
Near Mint Spanish - $4,900
Lightly Played Spanish - $4,000
Moderately Played Spanish - $3,500
Heavily Played Spanish - $3,000
Damaged Spanish - $2,500
Foil Prices
Near Mint Foil - $12,900
Lightly Played Foil - $10,300
Moderately Played Foil - $9,000
Heavily Played Foil - $7,800
Damaged Foil - $6,500
Near Mint Foil Spanish - $12,900
Lightly Played Foil Spanish - $10,300
Moderately Played Foil Spanish - $9,000
Heavily Played Foil Spanish - $7,800
Damaged Foil Spanish - $6,500