Whenever Serum Tank or another artifact enters the battlefield, put a charge counter on Serum Tank. {3}, {T}, Remove a charge counter from Serum Tank: Draw a card.
Near Mint - $0.30
Lightly Played - $0.30
Played - $0.20
Heavily Played - $0.20
Damaged - $0.20
Near Mint Non-English - $0.30
Lightly Played Non-English - $0.30
Played Non-English - $0.20
Heavily Played Non-English - $0.20
Damaged Non-English - $0.20