Yig, the Father of Serpents

Hexproof, Trample
{g}{g}{t} : Proliferate
Whenever Yig, the Father of Serpents deals combat damage to a player, you may put a
-1/-1 counter on target creature.
Whenever you put one or more -1/-1 counters on a creature, create a 1/2 green
Snake creature token with deathtouch.