Metalworker
A Legacy deck, by Chris Cornwell-Shiel
14th place at a tournament in Atlanta, Georgia, United States on 2012-09-23
As reported at http://www.starcitygames.com/

Maindeck:

Artifacts
4 Chalice of the Void
4 Grim Monolith
2 Lightning Greaves
3 Sensei's Divining Top (Banned in Legacy)
1 Spine of Ish Sah
1 Staff of Domination
3 Trinisphere
3 Voltaic Key

Artifact Creatures
1 Blightsteel Colossus
4 Kuldotha Forgemaster
4 Metalworker
1 Myr Battlesphere
1 Steel Hellkite
1 Sundering Titan

Creatures
4 Goblin Welder

Legendary Artifacts
2 Mox Opal

Artifact Lands
4 Darksteel Citadel
3 Great Furnace

Lands
4 Ancient Tomb
3 Cavern of Souls
3 City of Traitors
4 Wasteland

Sideboard:
1 Contagion Engine
1 Ensnaring Bridge
1 Ratchet Bomb
3 Tormod's Crypt
1 Trinisphere
1 Duplicant
1 Phyrexian Metamorph
3 Phyrexian Revoker
1 Platinum Emperion
2 Wurmcoil Engine