Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for {1}.)
"In the early days, Urza's wondrous automatons were seen as symbols of hope and courage."
—*The Antiquities War*
![Inspiring Statuary (Retro Schematic) (Serialized) [The Brothers' War Retro Artifacts] | L.A. Mood Comics and Games](http://lamoodcomics.ca/cdn/shop/products/031ffaf6e66fd8390ebd392c8d2f6302.jpg?v=1707415743)
