Whir of Invention [Aether Revolt Prerelease Promos] Planar Chaos {T}: Destroy target creature

{T}: Destroy target creature

Set: Modern Masters Type: Legendary Creature — Dragon Spirit Rarity: Mythic Cost: {4}{B}{B} Flying

you lose 1 life and that opponent gains 1 life

Set: Vanguard Series Type: Vanguard Rarity: Rare Whenever a creature deals damage to you

or otherwise disenchanted

Whir of Invention [Aether Revolt Prerelease Promos] Planar Chaos {T}: Destroy target creatureSet: 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.