Whir of Invention [Mystery Booster] Kaldheim Set: Oversize Cards Rarity: Rare

Set: Oversize Cards Rarity: Rare T: Add one colorless mana to your mana pool

Set: Champions of Kamigawa Type: Legendary Creature — Goblin Warrior Rarity: Rare Cost: {1}{R}{R} Whenever a land enters the battlefield

Set: Weatherlight Type: Creature — Serpent Rarity: Rare Cost: {5}{U}{U} At the beginning of your upkeep

then shuffle and put them on top

Set: Legends Type: Legendary Creature — Human Warrior Rarity: Uncommon Cost: {4}{B}{R}{R} He is devious and cunning

Whir of Invention [Mystery Booster] Kaldheim Set: Oversize Cards Rarity: 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.