4 Darksteel Citadel
2 Geier Reach Sanitarium
4 Mishra's Factory
4 Mutavault
4 Urza's Factory
4 Wasteland
2 Wastes
4 Assembly-Worker
4 Brass Herald
4 Metallic Mimic
4 Mishra's Bauble
4 Mishra's Groundbreaker
4 Mishra's Helix
4 Obelisk of Urd
4 Proteus Machine
4 Self-Assembler
Sideboard: