Nyxthyl, Savage Devourer

Nyxthyl enters the battlefield with X +1/+1 counters on it.
Feed 2 (Whenever a creature dealt damage by this creature dies, put two +1/+1 counters on this creature.)
{1}, Remove a +1/+1 counter from
Nyxthyl: Nyxthyl deals 1 damage to target creature.