5 Snow-Covered Island
1 Snow-Covered Mountain
1 Snow-Covered Swamp
1 Blood Crypt
1 Breeding Pool
4 Polluted Delta
4 Scalding Tarn
1 Steam Vents
1 Watery Grave
1 Inventors' Fair
3 Whir of Invention
2 Galvanic Blast
4 Arcum's Astrolabe
4 Mox Opal
1 Welding Jar
4 Thopter Foundry
1 Pyrite Spellbomb
2 Sword of the Meek
1 Pithing Needle
1 Nihil Spellbomb
4 Mishra's Bauble
1 Ichor Wellspring
1 Ensnaring Bridge
1 Damping Sphere
2 Chromatic Star
4 Urza, Lord High Artificer
1 Sai, Master Thopterist
3 Goblin Engineer
Sideboard
1 Mystic Forge
3 Assassin's Trophy
1 Fatal Push
1 Ashiok, Dream Render
2 Tezzeret, Agent of Bolas
3 Collective Brutality
1 Dead of Winter
3 Thoughtseize