Whir of Invention [Aether Revolt Prerelease Promos] XY27 An opponent chooses one of

An opponent chooses one of them

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

if it wasn't the first land you played this turn

Set: Sword & Shield: Brilliant Stars Type: Supporter Rarity: Ultra Rare

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

Whir of Invention [Aether Revolt Prerelease Promos] XY27 An opponent chooses one ofSet: 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.