4 Sweatworks Brawler 3 Reverse Engineer 4 Spire of Industry 4 Metallic Rebuke 3 Bastion Inventor 2 Servo Schematic 2 Heart of Kiran 4 Maverick Thopterist 2 Inventors' Fair 4 Spirebluff Canal 4 Inventor's Goggles 4 Welding Sparks 4 Wandering Fumarole 4 Bone Saw 3 Mountain 5 Island 4 Ornithopter Sideboard 4 Walking Ballista 4 Scrap Trawler 4 Galvanic Bombardment 3 Negate