Whir of Invention
Instant
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.
Printings & Conditions (9)
Aether Revolt (AER)(Aether Revolt)#49
Special Guests (SPG)(Borderless) (Special Guests)#86Mythic
The List (PLST)(Mystery Booster)#AER-49Rare
Aether Revolt Promos (PAER)(Promo Pack: Zendikar Rising)#49pRareOut of stock
Aether Revolt Promos (PAER)(Promo Pack: Zendikar Rising)RareOut of stock
Aether Revolt Promos (PAER)(Promos: Prerelease Cards)#49sRareOut of stock
Aether Revolt Promos (PAER)(Promos: Prerelease Cards)RareOut of stock
Secret Lair Drop (SLD)(Secret Lair)#311RareOut of stock
Special Guests (SPG)(Borderless) (First-Place Foil) (Special Guests)#96Mythic✦
First-place foilOut of stock