At the beginning of your precombat main phase, add {B} for each charge counter on Altar of Shadows. {7}, {T}: Destroy target creature. Then put a charge counter on Altar of Shadows.
Near Mint - $300
Lightly Played - $200
Moderately Played - $200
Heavily Played - $200
Damaged - $200
Near Mint Spanish - $300
Lightly Played Spanish - $200
Moderately Played Spanish - $200
Heavily Played Spanish - $200
Damaged Spanish - $200
Foil Prices
Near Mint Foil - $500
Lightly Played Foil - $400
Moderately Played Foil - $400
Heavily Played Foil - $300
Damaged Foil - $300
Near Mint Foil Spanish - $500
Lightly Played Foil Spanish - $400
Moderately Played Foil Spanish - $400
Heavily Played Foil Spanish - $300
Damaged Foil Spanish - $300