Dredge
A Modern deck, by PRGJJAR
9th place at a tournament in Magic Online on 2020-06-11

Maindeck:

Artifacts
4 Shriekhorn

Creatures
3 Bloodghast
3 Golgari Thug
3 Merchant of the Vale
4 Narcomoeba
3 Ox of Agonas
4 Prized Amalgam
4 Stinkweed Imp

Sorceries
4 Cathartic Reunion
1 Conflagrate
4 Creeping Chill
3 Life from the Loam

Basic Lands
2 Mountain

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

Sideboard:
2 Pithing Needle
1 Leyline of Sanctity
2 Ancient Grudge
3 Lightning Axe
2 Nature's Claim
1 Conflagrate
3 Thoughtseize
1 Blast Zone