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.
Near Mint Foil - $4.60
Lightly Played Foil - $3.90
Moderately Played Foil - $2.80
Heavily Played Foil - $1.90
Damaged Foil - $1.00
Near Mint Foil French - $4.60
Lightly Played Foil French - $3.90
Moderately Played Foil French - $2.80
Heavily Played Foil French - $1.90
Damaged Foil French - $1.00