Whir of Invention [Aether Revolt Prerelease Promos] Mythic Her diligence in pursuing both

Her diligence in pursuing both is her greatest asset

The Order of Saint Traft found new strength with Sigarda's support

Add an amount of {B} equal to the sacrificed creature's mana value

• Return target permanent to its owner's hand

If a source an opponent controls would deal damage to you

Whir of Invention [Aether Revolt Prerelease Promos] Mythic Her diligence in pursuing bothSet: Aether Revolt Prerelease 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.