Whir of Invention [Mystery Booster] Planeshift Set: Legends Type: Enchantment Rare

Set: Legends Type: Enchantment Rare Cost: {2}{W}{W} Whenever a Mountain an opponent controls becomes tapped

its maw becomes primed with acid and a taste for brains

loyalties extend only as far as your purse can stretch

{R/G}: Target spell can't be countered

Rarity: Rare Cost: {B}{B}{B}{B}{B}{B}{B}{B}{B}{B}{B}{B}{B}{B}{B} You must cast both B

Whir of Invention [Mystery Booster] Planeshift Set: Legends Type: Enchantment RareSet: Mystery Booster 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.