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 - $2.00
Lightly Played - $2.00
Moderately Played - $1.75
Heavily Played - $1.50
Damaged - $1.00
Near Mint Non-English - $2.00
Lightly Played Non-English - $2.00
Moderately Played Non-English - $1.75
Heavily Played Non-English - $1.50
Damaged Non-English - $1.00
Foil Prices
Near Mint Foil - $7.50
Lightly Played Foil - $7.00
Moderately Played Foil - $6.00
Heavily Played Foil - $4.75
Damaged Foil - $3.75
Near Mint Foil Non-English - $7.50
Lightly Played Foil Non-English - $7.00
Moderately Played Foil Non-English - $6.00
Heavily Played Foil Non-English - $4.75
Damaged Foil Non-English - $3.75