24 Mountain
1 Blightsteel Colossus
2 Embersmith
4 Immolating Souleater
3 Iron Myr
1 Kuldotha Forgemaster
4 Lightning Bolt
1 Mirrorworks
3 Moltensteel Dragon
1 Myr Battlesphere
2 Myr Welder
1 Piston Sledge
1 Slag Fiend
4 Slash Panther
2 Thopter Assembly
1 Titan Forge
2 Tormentor Exarch
1 Unwinding Clock
3 Vulshok Replica
Sideboard:
2 Alloy Myr
2 Jor Kadeen, the Prevailer
1 Tempered Steel