Urza's Workshop
Land - Urza's
: Add
.
Metalcraft --
: Add
for each Urza's land you control. Activate only if you control three or more artifacts.
Decks with Urza's Workshop
[BRC] The Brothers' War Commander #28 (R)
[BRC] The Brothers' War Commander #51 (R)
[PRM] Magic Online Promos #105866 (R)