Necrotic Pestilence

Trample, Deathtouch, Skulk
Tap X other creatures you control, put X +1/+1 counters on Necrotic Pestilence. At the beginning of your end step, put X -1/-1 counters on target creature you don't control.
Remove all +1/+1 counters from this creature, regenerate it.
"End of all hope..."