Whir of Invention [Aether Revolt Promos] HGSS14 They kill us for their

They kill us for their sport

Set: Conspiracy: Take the Crown Type: Enchantment Rarity: Rare Cost: {G} Whenever an opponent plays a land

Set: Guilds of Ravnica Promos Type: Legendary Creature — Dragon Wizard Rarity: Rare Cost: {U}{U}{U}{R}{R}{R} This spell can't be countered

Sacrifice a Wizard: Counter target spell

Set: Kaladesh Prerelease Promos Type: Instant Rarity: Rare Cost: {3}{U} Return any number of target nonland

Whir of Invention [Aether Revolt Promos] HGSS14 They kill us for theirSet: Aether Revolt 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.