Whir of Invention
Aether Revolt Promos (PAER #49p)
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CKCard Kingdom
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€5.61
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Whir of Invention
CMC: 3
Type
Instant
Rules Text
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for 
.)
Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
Printing
Aether Revolt Promos (PAER #49p)
rare
Illustrated by Christine Choi