Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Near Mint - $8.80
Near Mint Non-English - $8.80
Lightly Played - $8.00
Lightly Played Non-English - $8.00
Played - $6.20
Played Non-English - $6.20
Heavily Played - $5.30
Heavily Played Non-English - $5.30
Damaged Non-English - $4.40
Damaged - $4.40
Foil Prices
Near Mint Foil - $20.30
Near Mint Foil Non-English - $20.30
Lightly Played Foil - $18.30
Lightly Played Foil Non-English - $18.30
Played Foil - $14.20
Played Foil Non-English - $14.20
Heavily Played Foil - $12.20
Heavily Played Foil Non-English - $12.20
Damaged Foil - $10.20
Damaged Foil Non-English - $10.20