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 - $4.700
Lightly Played - $3.800
Moderately Played - $3.300
Heavily Played - $2.800
Damaged - $2.400
Near Mint Spanish - $4.700
Lightly Played Spanish - $3.800
Moderately Played Spanish - $3.300
Heavily Played Spanish - $2.800
Damaged Spanish - $2.400
Foil Prices
Near Mint Foil - $14.400
Lightly Played Foil - $11.500
Moderately Played Foil - $10.100
Heavily Played Foil - $8.700
Damaged Foil - $7.200
Near Mint Foil Spanish - $14.400
Lightly Played Foil Spanish - $11.500
Moderately Played Foil Spanish - $10.100
Heavily Played Foil Spanish - $8.700
Damaged Foil Spanish - $7.200