Dredge
A Legacy deck, by David Thomas
64th place at a tournament on 2012-10-28

Maindeck:

Artifacts
4 Lion's Eye Diamond

Creatures
1 Flame-Kin Zealot
4 Golgari Grave-Troll
3 Golgari Thug
3 Ichorid
4 Narcomoeba
4 Putrid Imp
4 Stinkweed Imp

Enchantments
4 Bridge from Below

Legendary Creatures
1 Iona, Shield of Emeria

Sorceries
2 Breakthrough
4 Cabal Therapy
4 Careful Study
2 Dread Return
4 Faithless Looting

Lands
4 Cephalid Coliseum
4 City of Brass
4 Gemstone Mine

Sideboard:
3 Pithing Needle
1 Angel of Despair
1 Chain of Vapor
3 Firestorm
1 Memory's Journey
4 Nature's Claim
1 Elesh Norn, Grand Cenobite
1 Undiscovered Paradise