Whir of Invention [Mystery Booster] Planeshift the Su-Chi were inherently unstable

the Su-Chi were inherently unstable but provided useful knowledge for Tocasia's students

Set: Legends Type: Legendary Creature — Shapeshifter Rare Cost: {1}{W}{U}{B} At the beginning of your upkeep

Exile two legendary cards from your graveyard: Until end of turn

Each player antes the top card of their library

Whir of Invention [Mystery Booster] Planeshift the Su-Chi were inherently unstableSet: 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.