When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each B in the mana costs of permanents you control counts toward your devotion to black.)
Near Mint - $1.00
Lightly Played - $1.00
Moderately Played - $0.90
Heavily Played - $0.80
Damaged - $0.60
Near Mint Non English - $1.00
Lightly Played Non English - $1.00
Moderately Played Non English - $0.90
Heavily Played Non English - $0.80
Damaged Non English - $0.60