Rakdos Sacrifice
A Standard deck, by rastaf
1st place at a tournament in Magic Online on 2020-06-09

Maindeck:
4 Mountain

Artifacts
4 Witch's Oven (Not currently legal in Standard)

Creatures
4 Cauldron Familiar (Not currently legal in Standard)
4 Dreadhorde Butcher (Not currently legal in Standard)
4 Gutterbones (Not currently legal in Standard)
3 Mayhem Devil (Not currently legal in Standard)
4 Priest of Forgotten Gods (Not currently legal in Standard)
3 Serrated Scorpion (Not currently legal in Standard)

Legendary Creatures
2 Kroxa, Titan of Death's Hunger (Not currently legal in Standard)
3 Lurrus of the Dream-Den (Not currently legal in Standard)

Sorceries
3 Call of the Death-Dweller (Not currently legal in Standard)
3 Claim the Firstborn (Not currently legal in Standard)

Basic Lands
9 Swamp

Lands
4 Blood Crypt (Not currently legal in Standard)
2 Castle Locthwain (Not currently legal in Standard)
1 Fabled Passage (Not currently legal in Standard)
1 Sacred Foundry (Not currently legal in Standard)
2 Temple of Malice (Not currently legal in Standard)

Sideboard:
2 Soul-Guide Lantern (Not currently legal in Standard)
2 Embereth Shieldbreaker (Not currently legal in Standard)
1 Mayhem Devil (Not currently legal in Standard)
3 Rotting Regisaur (Not currently legal in Standard)
1 Dead Weight (Not currently legal in Standard)
1 Mire's Grasp (Not currently legal in Standard)
1 Claim the Firstborn (Not currently legal in Standard)
4 Duress