Whir of Invention [Mystery Booster] Planeshift its maw becomes primed with

its maw becomes primed with acid and a taste for brains

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

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

Each player antes the top card of their library

−2: Target creature you control fights target creature you don't control

Whir of Invention [Mystery Booster] Planeshift its maw becomes primed withSet: 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.