![Whir of Invention (49) [Prerelease Cards]](http://alwaysgames.ca/cdn/shop/files/126869_in_1000x1000_6b7a4146-8b2b-4b97-b121-079106363bb4.jpg?v=1771621824&width=672)
![Whir of Invention (49) [Prerelease Cards]](http://alwaysgames.ca/cdn/shop/files/126869_in_1000x1000_6b7a4146-8b2b-4b97-b121-079106363bb4_1024x.jpg?v=1771621824)
Description
| Set: | Prerelease Cards |
| Type: | Instant |
| Rarity: | rare |
| 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 mana value X or less, put it onto the battlefield, then shuffle.