Whir of Invention [Aether Revolt Prerelease Promos] Vanguard Series return Glistening Oil to its

return Glistening Oil to its owner's hand

Set: Eighth Edition Type: Creature — Bird Rarity: Rare Cost: {G} Flying

Gravestorm (When you cast this spell

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {5} As Gauntlet of Power enters the battlefield

Whir of Invention [Aether Revolt Prerelease Promos] Vanguard Series return Glistening Oil to itsSet: 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.