Jund
A Standard deck, by Emanuele Giusti
1st place at a tournament in Brussels, Belgium on 2010-03-28
As reported at http://www.wizards.com/Magic/Magazine/Article.aspx?x=mtg/daily/eventcoverage/gpbru10/top8decks

Maindeck:

Creatures
4 Bloodbraid Elf (Not currently legal in Standard)
3 Broodmate Dragon (Not currently legal in Standard)
4 Putrid Leech (Not currently legal in Standard)
3 Siege-Gang Commander (Not currently legal in Standard)
4 Sprouting Thrinax (Not currently legal in Standard)

Instants
4 Lightning Bolt (Not currently legal in Standard)
2 Terminate (Not currently legal in Standard)

Legendary Planeswalkers
2 Garruk Wildspeaker (Not currently legal in Standard)

Sorceries
4 Blightning (Not currently legal in Standard)
3 Maelstrom Pulse (Not currently legal in Standard)

Basic Lands
4 Forest
3 Mountain
3 Swamp

Lands
2 Dragonskull Summit (Not currently legal in Standard)
2 Lavaclaw Reaches (Not currently legal in Standard)
4 Raging Ravine (Not currently legal in Standard)
1 Rootbound Crag (Not currently legal in Standard)
4 Savage Lands (Not currently legal in Standard)
4 Verdant Catacombs (Not currently legal in Standard)

Sideboard:
2 Anathemancer (Not currently legal in Standard)
4 Goblin Ruinblaster (Not currently legal in Standard)
2 Jund Charm (Not currently legal in Standard)
1 Terminate (Not currently legal in Standard)
4 Deathmark (Not currently legal in Standard)
1 Mind Rot (Not currently legal in Standard)
1 Thought Hemorrhage (Not currently legal in Standard)