Whir of Invention [Mystery Booster] SM196 Exile any number of target

Exile any number of target spells

or when a Spell/Trap that is already face-up on the field activates its effect (Quick Effect): You can send this card from your hand or field to the GY

At the beginning of the upkeep of enchanted enchantment's controller

• Green Gadget: If this card attacks a Defense Position monster

And now I see exactly how to kill you

Whir of Invention [Mystery Booster] SM196 Exile any number of targetSet: 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.