Hunger's Dawn

Chomp X (Tap this creature and another target creature you don't control, deal X damage to the other creature. Neither creature may untap until one of the chosen creatures leaves the battlefield. At the beginning of your upkeep, put a -1/-1 counter on the other creature.)X is equal to its power.
Hunger's Dawn may target an additional creature when activating its chomp ability for each +1/+1 counter on Hunger's Dawn.
Whenever a creature dies, put a +1/+1 on counter Hunger's Dawn.