Enchant artifact
As long as enchanted artifact isn't a creature, it's an artifact creature with power and toughness each equal to its converted mana cost.
Near Mint - $4.00
Near Mint Non-English - $4.00
Lightly Played - $3.60
Lightly Played Non-English - $3.60
Played - $2.80
Played Non-English - $2.80
Heavily Played - $2.40
Heavily Played Non-English - $2.40
Damaged - $2.00
Damaged Non-English - $2.00