Spore Horde, Infinite Spore

Spore Horde enters the battlefield with X +1/+1 counters on it.
Whenever damage would be dealt to Spore Horde, remove that many +1/+1 counters off of it and create a 1/1 green saproling token for each 1 point of damage dealt to it.
{2}, Sacrifice a saproling: Put two +1/+1 counters on Spore Horde.