Format legality
- –standardNot legal
- ✓pioneerLegal
- ✓modernLegal
- ✓legacyLegal
- ✓vintageLegal
- ✓commanderLegal
- –pauperNot legal
- ✓brawlLegal
Whir of Invention
Instant - Aether Revolt Promos #49s - Rare - (EN)
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.
.)
Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.Loading market prices…
Format legality
- –standardNot legal
- ✓pioneerLegal
- ✓modernLegal
- ✓legacyLegal
- ✓vintageLegal
- ✓commanderLegal
- –pauperNot legal
- ✓brawlLegal