You may pay {B} rather than pay this spell's mana cost if there are thirteen or more creatures on the battlefield. Each player sacrifices thirteen creatures of their choice.
NM-Mint - $8.50
Lightly Played - $8.10
Moderately Played - $7.70
Heavily Played - $6.80
Damaged - $5.60
NM-Mint Non English - $8.50
Lightly Played Non English - $8.10
Moderately Played Non English - $7.70
Heavily Played Non English - $6.80
Damaged Non English - $5.60
Foil Prices
NM-Mint Foil - $13.80
Lightly Played Foil - $13.10
Moderately Played Foil - $12.40
Heavily Played Foil - $11.10
Damaged Foil - $9.00
NM-Mint Foil Non English - $13.80
Lightly Played Foil Non English - $13.10
Moderately Played Foil Non English - $12.40
Heavily Played Foil Non English - $11.10
Damaged Foil Non English - $9.00