When Gray Merchant of Asphodel enters, 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 - £1.10
Lightly Played - £1.00
Moderately Played - £0.80
Heavily Played - £0.60
Damaged - £0.40
Near Mint Non English - £1.10
Lightly Played Non English - £1.00
Moderately Played Non English - £0.80
Heavily Played Non English - £0.60
Damaged Non English - £0.40