Whir of Invention [Aether Revolt Promos] Cat Glimmer "Progress update: the problem of

"Progress update: the problem of the slagheap blocking the entrance seems to have solved itself

” —Records of the Living Historians

Each other creature you control that's a Cat

In fire there is the spark of chaos and destruction

Whir of Invention [Aether Revolt Promos] Cat Glimmer "Progress update: the problem ofSet: Aether Revolt Promos Type: Instant Rarity: Rare Cost: {X}{U}{U}{U} 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.