Gray Merchant of Asphodel [Theros] Cephalid Advisor Each opponent loses life equal

Each opponent loses life equal to that card's mana value

target creature an opponent controls gets -2/-2 until end of turn

Set: Innistrad: Double Feature Type: Creature — Vampire Rarity: Rare Cost: {2}{B} Flying

but actually

Gray Merchant of Asphodel [Theros] Cephalid Advisor Each opponent loses life equalSet: Theros Type: Creature Zombie Rarity: Common Cost: {3}{B}{B} 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.)