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.
NM-Mint - $3.90
Lightly Played - $3.50
Moderately Played - $3.10
Heavily Played - $2.70
Damaged - $2.00
NM-Mint Non English - $3.90
Lightly Played Non English - $3.50
Moderately Played Non English - $3.10
Heavily Played Non English - $2.70
Damaged Non English - $2.00
Foil Prices
NM-Mint Foil - $6.00
Lightly Played Foil - $5.40
Moderately Played Foil - $4.80
Heavily Played Foil - $4.20
Damaged Foil - $3.00
NM-Mint Foil Non English - $6.00
Lightly Played Foil Non English - $5.40
Moderately Played Foil Non English - $4.80
Heavily Played Foil Non English - $4.20
Damaged Foil Non English - $3.00