Thopter Depths
An Extended deck, by Adam Yurchick
2nd place at a tournament in Oakland, California, United States on 2010-02-14
As reported at http://www.wizards.com/Magic/Magazine/Article.aspx?x=mtg/daily/eventcoverage/gpoak10/welcome

Maindeck:
2 Island

Artifacts
4 Chrome Mox (Not currently legal in Extended)
1 Engineered Explosives (Not currently legal in Extended)
2 Sword of the Meek (Not currently legal in Extended)
3 Thopter Foundry (Not currently legal in Extended)

Creatures
4 Dark Confidant (Not currently legal in Extended)
4 Vampire Hexmage

Instants
1 Into the Roil
4 Muddle the Mixture (Not currently legal in Extended)
1 Repeal (Not currently legal in Extended)
1 Slaughter Pact (Not currently legal in Extended)
1 Smother
4 Thirst for Knowledge (Not currently legal in Extended)

Sorceries
1 Compulsive Research (Not currently legal in Extended)
1 Duress
4 Thoughtseize (Not currently legal in Extended)

Basic Lands
2 Swamp

Lands
1 Dimir Aqueduct (Not currently legal in Extended)
4 River of Tears (Not currently legal in Extended)
4 Sunken Ruins (Not currently legal in Extended)
3 Tolaria West (Not currently legal in Extended)

Legendary Lands
1 Academy Ruins (Not currently legal in Extended)
3 Urborg, Tomb of Yawgmoth

Legendary Snow Lands
4 Dark Depths (Not currently legal in Extended)

Sideboard:
1 Chalice of the Void (Not currently legal in Extended)
1 Sphinx of Jwar Isle
4 Leyline of the Void
2 Phyrexian Arena (Not currently legal in Extended)
2 Threads of Disloyalty (Not currently legal in Extended)
1 Darkblast (Not currently legal in Extended)
1 Oona, Queen of the Fae (Not currently legal in Extended)
3 Deathmark