Whir of InventionCasting Cost: {X}{U}{U}{U}Card Type: InstantCard 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.Flavour Text: "Magic hat, I'm gonna be frank. What we need now is a twenty-ton tank!"Artist: Tyler Walpole
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