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 converted mana cost X or less, put it onto the battlefield, then shuffle your library.
Near Mint - $9.60
Lightly Played - $8.70
Played - $6.80
Heavily Played - $5.80
Damaged - $4.80
Near Mint Non-English - $9.60
Lightly Played Non-English - $8.70
Played Non-English - $6.80
Heavily Played Non-English - $5.80
Damaged Non-English - $4.80
Foil Prices
Near Mint Foil - $19.10
Lightly Played Foil - $17.20
Played Foil - $13.40
Heavily Played Foil - $11.50
Damaged Foil - $9.60
Near Mint Foil Non-English - $19.10
Lightly Played Foil Non-English - $17.20
Played Foil Non-English - $13.40
Heavily Played Foil Non-English - $11.50
Damaged Foil Non-English - $9.60