![Whir of Invention [Aether Revolt]](http://rayscollectibles.myshopify.com/cdn/shop/products/0279fd3c-9252-4958-9d7a-5f33aa25907e_{width}x.jpg?v=1612476042)
![Whir of Invention [Aether Revolt]](http://rayscollectibles.myshopify.com/cdn/shop/products/0279fd3c-9252-4958-9d7a-5f33aa25907e_530x@2x.jpg?v=1612476042)
| Set: | Aether Revolt |
| Type: | Instant |
| Cost: | {X}{U}{U}{U} |
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Search your library for an artifact card with converted mana cost X or less, put it onto the battlefield, then shuffle your library.