4 Darksteel Citadel
1 Gargoyle Castle
1 Mystifying Maze
1 Stalking Stones
1 Tectonic Edge
4 Urza's Mine
4 Urza's Power Plant
4 Urza's Tower
1 Akroma's Memorial
2 Arachnoid
1 Arcbound Crusher
2 Arcbound Overseer
4 Arcbound Stinger
2 Contagion Clasp
1 Contagion Engine
1 Darksteel Colossus
1 Darksteel Forge
1 Darksteel Juggernaut
1 Darksteel Reactor
3 Energy Chamber
1 Etched Champion
1 Feldon's Cane
1 Golem Artisan
1 Golem Foundry
1 Karn Liberated
1 Lodestone Golem
1 Lux Cannon
1 Mirrorworks
1 Mishra's Self-Replicator
1 Mycosynth Golem
4 Myr Servitor
1 Shimmer Myr
1 Slagstone Refinery
1 Steel Overseer
1 Talon of Pain
1 Titan Forge
2 Voltaic Key
Sideboard:
2 Contagion Clasp
1 Contagion Engine
1 Lodestone Golem
1 Steel Overseer