Damnable Warlockry

As an additional cost to cast Damnable
Warlockry, pay up to X life, discard up to X
cards, and sacrifice up to X creatures.
Each opponent loses life equal to the life you
paid this way, discards a card for each card you discarded this way, and sacrifices a creature for
each creature you sacrificed this way.
"I will hurl myself into the blackest depths of hell
as long as I can drag you down with me!"