Aetherborn Reprocessor

Fabricate 1 (When this creature enters the battlefield, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.)
Whenever an artifact is put into a graveyard from the battlefield, you get {e} (an energy counter).
{t}, pay {e}{e}: Gain 1 life for each artifact you control.