Crypt Ghast
3795a4e7-646f-4bb7-b154-2610eb740e8d
$1.99 CND
Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Whenever you tap a Swamp for mana, add {B} to your mana pool (in addition to the mana the land produces).