Affinity
An Extended deck, by Brett Piazza
1st place at a Pro Tour–Yokohama tournament in Denver, Colorado, United States on 2007-02-11
As reported at http://www.wizards.com/default.asp?x=mtgevent/yokohama07ptq/0210denver

Maindeck:

Artifacts
2 Chromatic Sphere (Not currently legal in Extended)
4 Chromatic Star (Not currently legal in Extended)
4 Cranial Plating (Not currently legal in Extended)
2 Welding Jar (Not currently legal in Extended)

Artifact Creatures
4 Arcbound Ravager (Not currently legal in Extended)
4 Arcbound Worker (Not currently legal in Extended)
4 Frogmite (Not currently legal in Extended)
4 Myr Enforcer (Not currently legal in Extended)
4 Ornithopter

Creatures
1 Atog (Not currently legal in Extended)

Instants
3 Shrapnel Blast

Sorceries
4 Thoughtcast (Not currently legal in Extended)

Artifact Lands
4 Great Furnace (Not currently legal in Extended)
4 Seat of the Synod (Not currently legal in Extended)
4 Tree of Tales (Not currently legal in Extended)
4 Vault of Whispers (Not currently legal in Extended)

Lands
4 Blinkmoth Nexus (Not currently legal in Extended)

Sideboard:
2 Pithing Needle
3 Tormod's Crypt
3 Ancient Grudge
3 Darkblast (Not currently legal in Extended)
4 Cabal Therapy (Not currently legal in Extended)