Pox Rock
An Extended deck, by Michael Farrell
2nd place at a PT: San Juan PTQ Season tournament in Iselin, New Jersey, United States on 2010-03-07
As reported at http://www.wizards.com/magic/magazine/article.aspx?x=mtg/daily/eventcoverage/sanjuan10ptq/0306iselin

Maindeck:

Creatures
4 Dark Confidant (Not currently legal in Extended)
3 Eternal Witness (Not currently legal in Extended)
2 Gatekeeper of Malakir
4 Kitchen Finks (Not currently legal in Extended)
4 Tarmogoyf (Not currently legal in Extended)

Instants
2 Smother

Legendary Artifacts
3 Umezawa's Jitte (Not currently legal in Extended)

Sorceries
3 Maelstrom Pulse (Not currently legal in Extended)
4 Smallpox
3 Stupor (Not currently legal in Extended)
4 Thoughtseize (Not currently legal in Extended)

Basic Lands
2 Forest
4 Swamp

Lands
1 Marsh Flats
3 Mutavault
3 Overgrown Tomb
3 Treetop Village (Not currently legal in Extended)
2 Twilight Mire (Not currently legal in Extended)
4 Verdant Catacombs

Legendary Lands
2 Urborg, Tomb of Yawgmoth

Sideboard:
3 Chalice of the Void (Not currently legal in Extended)
2 Damping Matrix (Not currently legal in Extended)
4 Extirpate (Not currently legal in Extended)
2 Krosan Grip (Not currently legal in Extended)
1 Cranial Extraction (Not currently legal in Extended)
3 Deathmark