Efficient Construction - Foil Tweet Out of stock. $0.83 Wishlist Sell This Product Details Card Number: 33/184 Card Type: Enchantment Rarity: U Card Text: Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying. Color: Blue Finish: Foil Name: Efficient Construction Set Name: Aether Revolt Artist: Jonas De Ro Cost: 3U