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 - $9.00
Lightly Played - $8.10
Played - $6.30
Heavily Played - $5.40
Damaged - $4.50
Near Mint Non-English - $9.00
Lightly Played Non-English - $8.10
Played Non-English - $6.30
Heavily Played Non-English - $5.40
Damaged Non-English - $4.50
Foil Prices
Near Mint Foil - $14.70
Lightly Played Foil - $13.20
Played Foil - $10.30
Heavily Played Foil - $8.80
Damaged Foil - $7.40
Near Mint Foil Non-English - $14.70
Lightly Played Foil Non-English - $13.20
Played Foil Non-English - $10.30
Heavily Played Foil Non-English - $8.80
Damaged Foil Non-English - $7.40