Urza, Lord Protector{1}{W}{U}
Legendary Creature — Human Artificer
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.
2/4
Artist: Ryan Pancoast