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 - $3.10
Lightly Played - $2.80
Played - $2.20
Heavily Played - $1.90
Damaged - $1.60
Near Mint Non-English - $3.10
Lightly Played Non-English - $2.80
Played Non-English - $2.20
Heavily Played Non-English - $1.90
Damaged Non-English - $1.60
Foil Prices
Near Mint Foil - $10.90
Lightly Played Foil - $9.80
Played Foil - $7.70
Heavily Played Foil - $6.60
Damaged Foil - $5.50
Near Mint Foil Non-English - $10.90
Lightly Played Foil Non-English - $9.80
Played Foil Non-English - $7.70
Heavily Played Foil Non-English - $6.60
Damaged Foil Non-English - $5.50