Set: |
Aether Revolt |
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.