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 - $6.50
Near Mint Non-English - $6.50
Lightly Played - $6.25
Lightly Played Non-English - $6.25
Moderately Played - $5.25
Moderately Played Non-English - $5.25
Heavily Played Non-English - $4.00
Heavily Played - $4.00
Damaged - $3.25
Damaged Non-English - $3.25
Foil Prices
Near Mint Foil Non-English - $15.00
Near Mint Foil - $15.00
Lightly Played Foil - $14.25
Lightly Played Foil Non-English - $14.25
Moderately Played Foil - $12.00
Moderately Played Foil Non-English - $12.00
Heavily Played Foil - $9.00
Heavily Played Foil Non-English - $9.00
Damaged Foil - $7.50
Damaged Foil Non-English - $7.50