Into the Serpent's Den

If an opponent had four or more creatures under their control die this turn, you may pay
{1}{b}{g} rather than pay this spell's mana cost.
Create a 4/4 black and green Snake creature token with first strike and poisonous 2. Target opponent can't cast creature spells until their
next turn. You gain 4 life.
An ancient serpent's hunger is never satisfied.