Hisheer, Svogthir's Heir

+2: Sacrifice a creature. When you do, draw a card and gain life equal to that creature's toughness.
-3: Whenever a nontoken creature you control dies this turn, you may create a 1/1 Black and Green Snake token with deathtouch.
-8: You get an emblem with ''Creatures you control have: Sacrifice this creature: add one mana of any color to your mana pool.