Mechagodzilla, Battle Fortress

Hangarback Walker enters the battlefield with X +1/+1 counters on it.
When Hangarback Walker dies, create a 1/1 colorless Thopter artifact creature token with flying for each +1/+1 counter on Hangarback Walker.
{1}, {t}: Put a +1/+1 counter on Hangarback Walker.

“So Godzilla is still alive. We’ll have to teach it another lesson. Mechagodzilla, beat Godzilla to death” Black Hole Alien Leader