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.

Artifact creatures you control get +2/+2. {6}: Create a token that's a copy of target artifact you control, except it's a 1/1 Soldier creature in addition to its other types.

{T}: Add {C}. Metalcraft — {T}: Add {C} for each Urza's land you control. Activate only if you control three or more artifacts.

You may activate the loyalty abilities of Urza, Planeswalker twice each turn rather than only once. +2: Artifact, instant, and sorcery spells you cast this turn cost {2} less to cast. You gain 2 life. +1: Draw two cards, then discard a card. 0: Create two 1/1 colorless Soldier artifact creature tokens. −3: Exile target nonland permanent. −10: Artifacts and planeswalkers you control gain indestructible until end of turn. Destroy all nonland permanents.