Urza, Lord Protector 225 (The Brothers' War)

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 - $18.10
LP - $14.50
MP - $10.90
HP - $7.30
DMG - $3.70