Merchant of Souls

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 extort you may pay {r} and discard
a card. If you do, draw a card.
"Giving or taking makes no difference as long as you
turn a profit." — Commercium Animae
Principiorum Vol. 1