Mollymauk Tealeaf

Whenever Mollymauk Tealeaf and/or one or
more other Blood Hunter enter the battlefield
under your control, create Blood token. This
ability triggers only once each turn. (It's an
artifact with "{1},{t}, Discard a card, Sarcifice this artifact: Draw a card.")
{2}, Sacrifice another creature or a Blood token:
Each opponent loses 2 life and you gain 2 life.