Whir of Invention [Aether Revolt Prerelease Promos] Jr. Set: Time Spiral Type: Instant

Set: Time Spiral Type: Instant Rarity: Rare Cost: {1}{R}{R} Buyback {3} (You may pay an additional {3} as you cast this spell

When this artifact is put into a graveyard from the battlefield

You may cast creature spells from the top of your library

II — Destroy all nonartifact creatures

: Return target legendary creature to its owner's hand

Whir of Invention [Aether Revolt Prerelease Promos] Jr. Set: Time Spiral Type: InstantSet: 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.