Nildukul, Released Destroyer

Nildukul enters the battlefield with twice X
+1/+1 counters on it
Trample, Vigilance, Annihilator 4
Whenever an Eldrazi dies, put X +1/+1 counters
on it, where X is the power of that Eldrazi
Ulamog was after more than just destruction; Total annihilation