1 Teferi, Time Raveler 1 Grafdigger's Cage 1 Ichor Wellspring 1 Pyrite Spellbomb 1 Pithing Needle 1 Nihil Spellbomb 2 Chromatic Star 2 Ensnaring Bridge 2 Sword of the Meek 2 Pentad Prism 3 Whir of Invention 4 Arcum's Astrolabe 4 Mox Opal 4 Thopter Foundry 4 Mishra's Bauble 3 Goblin Engineer 4 Urza, Lord High Artificer 1 Steam Vents 1 Inventors' Fair 1 Prairie Stream 1 Watery Grave 1 Snow-Covered Swamp 1 Snow-Covered Mountain 4 Scalding Tarn 4 Polluted Delta 6 Snow-Covered Island Sideboard 1 Damping Sphere 2 Welding Jar 1 Celestial Purge 1 Ceremonious Rejection 2 Thoughtseize 1 Dead of Winter 2 Tezzeret the Seeker 3 Fatal Push 2 Saheeli, Sublime Artificer