Whenever a creature dies, put a charge counter on Black Market. At the beginning of your precombat main phase, add {B} for each charge counter on Black Market.
NM-Mint - $3.70
Lightly Played - $3.50
Moderately Played - $3.30
Heavily Played - $2.90
Damaged - $2.40
NM-Mint Non English - $3.70
Lightly Played Non English - $3.50
Moderately Played Non English - $3.30
Heavily Played Non English - $2.90
Damaged Non English - $2.40