Dredge
A Vintage deck, by Wizard_2002
4th place at a tournament in Magic Online on 2020-05-31

Maindeck:

Artifacts
4 Serum Powder

Artifact Creatures
4 Hollow One

Creatures
1 Ashen Rider
1 Golgari Grave-Troll (Restricted in Vintage)
4 Golgari Thug
4 Ichorid
4 Narcomoeba
4 Prized Amalgam
4 Shambling Shell
4 Stinkweed Imp

Enchantments
4 Bridge from Below

Instants
4 Force of Negation
4 Force of Will
3 Mindbreak Trap

Legendary Creatures
1 Elesh Norn, Grand Cenobite

Sorceries
4 Cabal Therapy
2 Dread Return

Lands
4 Bazaar of Baghdad

Sideboard:
3 Leyline of Sanctity
3 Leyline of the Void
4 Force of Vigor
2 Sickening Shoal
1 Strip Mine (Restricted in Vintage)
2 Wasteland