Thopter Depths
An Extended deck, by Tezzerator
2nd place at a PT: San Juan PTQ Season tournament in Magic Online, United States on 2010-02-14
As reported at http://www.wizards.com/Magic/Digital/MagicOnlineTourn.aspx?x=mtg/digital/magiconline/tourn/947051

Maindeck:

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 Extirpate (Not currently legal in Extended)
4 Muddle the Mixture (Not currently legal in Extended)
3 Repeal (Not currently legal in Extended)
4 Thirst for Knowledge (Not currently legal in Extended)

Sorceries
2 Beseech the Queen (Not currently legal in Extended)
4 Thoughtseize (Not currently legal in Extended)

Basic Lands
3 Island
1 Swamp

Lands
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)
4 Urborg, Tomb of Yawgmoth

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

Sideboard:
1 Dimir Signet (Not currently legal in Extended)
1 Tormod's Crypt
2 Phyrexian Arena (Not currently legal in Extended)
2 Darkblast (Not currently legal in Extended)
2 Extirpate (Not currently legal in Extended)
2 Meloku the Clouded Mirror (Not currently legal in Extended)
3 Deathmark
2 Duress