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 - $3.700
Lightly Played - $3.000
Moderately Played - $2.600
Heavily Played - $2.300
Damaged - $1.900
Near Mint Spanish - $3.700
Lightly Played Spanish - $3.000
Moderately Played Spanish - $2.600
Heavily Played Spanish - $2.300
Damaged Spanish - $1.900
Foil Prices
Near Mint Foil - $5.000
Lightly Played Foil - $4.000
Moderately Played Foil - $3.500
Heavily Played Foil - $3.000
Damaged Foil - $2.500
Near Mint Foil Spanish - $5.000
Lightly Played Foil Spanish - $4.000
Moderately Played Foil Spanish - $3.500
Heavily Played Foil Spanish - $3.000
Damaged Foil Spanish - $2.500