Artifact, instant, and sorcery spells you cast cost {1} less to cast. {7}: If you both own and control Urza, Lord Protector and an artifact named The Mightstone and Weakstone, exile them, then meld them into Urza, Planeswalker. Activate only as a sorcery.
NM-Mint Foil - $18.10
Lightly Played Foil - $17.20
Moderately Played Foil - $16.30
Heavily Played Foil - $14.50
Damaged Foil - $11.80
NM-Mint Foil Non English - $18.10
Lightly Played Foil Non English - $17.20
Moderately Played Foil Non English - $16.30
Heavily Played Foil Non English - $14.50
Damaged Foil Non English - $11.80