20 Mountain
4 The Autonomous Furnace
2 Assembly-Worker
1 Bosh, Iron Golem
4 Brass Herald
1 Hellkite Igniter
4 Mine Worker
3 Mishra, Excavation Prodigy
4 Power Plant Worker
3 Pristine Talisman
4 Self-Assembler
4 Tower Worker
2 Urza's Rage
4 Welding Sparks
Sideboard: