Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Ghirapur's most celebrated inventors have been immortalized in clockwork.
NM-Mint Foil - $1.90
NM-Mint Foil Non English - $1.90
Lightly Played Foil - $1.80
Lightly Played Foil Non English - $1.80
Moderately Played Foil - $1.70
Moderately Played Foil Non English - $1.70
Heavily Played Foil - $1.50
Heavily Played Foil Non English - $1.50
Damaged Foil - $1.20
Damaged Foil Non English - $1.20