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.
NM-Mint - $2.80
Lightly Played - $2.60
Moderately Played - $2.50
Heavily Played - $2.20
Damaged - $1.80
NM-Mint Non English - $2.80
Lightly Played Non English - $2.60
Moderately Played Non English - $2.50
Heavily Played Non English - $2.20
Damaged Non English - $1.80
Foil Prices
NM-Mint Foil - $5.60
Lightly Played Foil - $5.30
Moderately Played Foil - $5.00
Heavily Played Foil - $4.50
Damaged Foil - $3.60
NM-Mint Foil Non English - $5.60
Lightly Played Foil Non English - $5.30
Moderately Played Foil Non English - $5.00
Heavily Played Foil Non English - $4.50
Damaged Foil Non English - $3.60