Whir of Invention
From Secret Lair Drop
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 converted mana cost X or less, put it onto the battlefield, then shuffle your library.
"Magic hat, I'm gonna be frank. What we need now is a twenty-ton tank!"
Artist: Tyler Walpole
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 converted mana cost X or less, put it onto the battlefield, then shuffle your library.
"Magic hat, I'm gonna be frank. What we need now is a twenty-ton tank!"
Artist: Tyler Walpole
