The Neolife Factory- Model 03

Lands you control enter the battlefield tapped.
At the beginning of you upkeep, you gain X life,
where X is the number of Artifact Creatures you control.
If you control two or more Factories,
non-Artifact Creatures get -1/-1 for each Factory
you control.
If you control five or more Factories, Artifact Creatures you control gain "{t}: Create X
Powerstone tokens, where X is this creature's toughness."