Drinker of Tithes

Whenever you lose life you may pay {3}{b}{b}, if you do, Gain that much life.
{1}{b}{b}{r}{r}: Vampires you control get
+1/+1 and have Extort until end of turn. (Whenever you cast a spell, you may pay {w/b}. If you do, each opponent loses 1 life and
you gain that much life.)