Cards List
Whir of Invention
undefined (SPG)
Find the best Standard decks for Whir of Invention, it's winrate, popularity and the MTG Arena formats where it is legal!
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.
Instant
Standard
Explorer
Alchemy
Historique
Timeless
Brawl
Rare