Whir of Invention [Aether Revolt Prerelease Promos] XY27 Set: Amonkhet Invocations Type: Enchantment

Set: Amonkhet Invocations Type: Enchantment Rarity: Mythic Cost: {2}{R} Nonbasic lands are Mountains

Set: EX: Legend Maker Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

pay {0} and exile it with three time counters on it

Set: EX: Trainer Kit 2 - Minun Type: Lightning Rarity: Promo Retreat cost: Colorless

Set: Diamond & Pearl: Majestic Dawn Type: Water Rarity: Rare Retreat cost: Colorless

Whir of Invention [Aether Revolt Prerelease Promos] XY27 Set: Amonkhet Invocations Type: EnchantmentSet: 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.