Urza, Lord Protector BRO/225

Set: The Brothers' War
Collector Code: BRO/225
Name: Urza, Lord Protector
Type: Legendary Creature — Human Artificer
Oracle text: 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.
Rarity: Mythic