1C, T: Create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this token: Add C."

Whenever another Eldrazi you control dies, put a +1/+1 counter on this artifact.

As long as this artifact has eight or more +1/+1 counters on it, it s a 0/0 creature in addition to its other types and it has annihilator 2.