Archfiend of Spite
{5}{B}{B}
Creature -- Demon
6/6
Flying
Whenever a source an opponent controls deals damage to ~this~, that source's controller loses that much life unless they sacrifice that many permanents of their choice.
Madness {3}{B}{B} (If you discard ~this~, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)