Whenever an artifact is put into a graveyard from the battlefield, you may have target opponent lose 1 life.

Tokens you control have "{T}: Add {G}." Choose a Background (You can have a Background as a second commander.)

Fabricate 3 (When this creature enters, put three +1/+1 counters on it or create three 1/1 colorless Servo artifact creature tokens.) Whenever an artifact you control is put into a graveyard from the battlefield, target opponent loses life equal to this creature's power.

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.