Dredge
A Modern deck, by Zen Takahashi
2nd place at a tournament in Brisbane, Australia on 2017-02-18

Maindeck:

Creatures
4 Bloodghast
3 Golgari Thug
1 Haunted Dead
4 Insolent Neonate
4 Narcomoeba
4 Prized Amalgam
4 Stinkweed Imp

Sorceries
4 Cathartic Reunion
3 Conflagrate
4 Faithless Looting (Banned in Modern)
4 Life from the Loam

Basic Lands
2 Mountain

Lands
3 Arid Mesa
2 Blackcleave Cliffs
1 Blood Crypt
2 Bloodstained Mire
3 Copperline Gorge
2 Dakmor Salvage
2 Gemstone Mine (Not currently legal in Modern)
2 Stomping Ground
2 Wooded Foothills

Sideboard:
2 Abrupt Decay
2 Ancient Grudge
2 Darkblast
1 Gnaw to the Bone
2 Lightning Axe
3 Collective Brutality
3 Thoughtseize