Whir of Invention [Aether Revolt Prerelease Promos] CRU025 "The warm rain of grease

"The warm rain of grease on my face immediately made it clear I had entered Phyrexia

Set: Commander's Arsenal Type: Legendary Creature — Human Cleric Rarity: Mythic Cost: {1}{R}{W}{B} Flying

Set: Nintendo: Black Star Promos Type: Fighting Rarity: Black Star Promo Retreat cost: Colorless

Set: EX: Crystal Guardians Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

Whir of Invention [Aether Revolt Prerelease Promos] CRU025 "The warm rain of greaseSet: 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.