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

Each player antes the top card of their library

loyalties extend only as far as your purse can stretch

Search its owner's graveyard

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

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.