Name: Whir of Invention Cost: XUUU CMC: 3 Color: U CID: U 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 {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle. Set/Rarity: Aether Revolt Promos rare, Aether Revolt rare, Secret Lair Drop rare, The List rare, Kaladesh Remastered rare, Aetherdrift special guest Set Code: PAER-R, AER-R, SLD-R, PLST-R, KLR-R, DFT-G Legality: Legal in penny, Legal in gladiator, Legal in historic, Legal in vintage, Legal in timeless, Legal in legacy, Legal in duel, Legal in brawl, Legal in modern, Legal in pioneer, Legal in commander, Legal in oathbreaker Price: $5.44 Foil price: $11.00