Thopter Mechanic is a uncommon Creature — Human Artificer card from The Brothers' War (BRO), collector number 68. Current market price: $0.13 (foil $0.13), TCGplayer market prices via Scryfall.
Whenever you draw your second card each turn, put a +1/+1 counter on this creature. When this creature dies, create a 1/1 colorless Thopter artifact creature token with flying.