| Set: |
Mystery Booster |
| 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.
![Whir of Invention [Mystery Booster]](http://cdn.shopify.com/s/files/1/0269/1307/9380/products/e6e08ac3-d01a-53bc-ba9d-e5f54f3b5ac7_1024x1024.jpg?v=1656630251)
