Mardu Sacrifice
A Standard deck, by Noah Walker
20th place at a tournament in Richmond, Virginia, United States on 2020-02-01

Maindeck:

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

Creatures
4 Cauldron Familiar (Not currently legal in Standard)
4 Cruel Celebrant (Not currently legal in Standard)
2 Gutterbones (Not currently legal in Standard)
4 Mayhem Devil (Not currently legal in Standard)
4 Midnight Reaper (Not currently legal in Standard)
1 Murderous Rider (Not currently legal in Standard)
4 Priest of Forgotten Gods (Not currently legal in Standard)
3 Woe Strider (Not currently legal in Standard)

Legendary Creatures
1 Rankle, Master of Pranks (Not currently legal in Standard)

Legendary Planeswalkers
2 Sorin, Vengeful Bloodlord (Not currently legal in Standard)

Sorceries
4 Claim the Firstborn (Not currently legal in Standard)

Basic Lands
1 Mountain
1 Plains
3 Swamp

Lands
4 Blood Crypt (Not currently legal in Standard)
3 Castle Locthwain (Not currently legal in Standard)
3 Fabled Passage (Not currently legal in Standard)
4 Godless Shrine (Not currently legal in Standard)
4 Sacred Foundry (Not currently legal in Standard)

Sideboard:
3 Despark (Not currently legal in Standard)
3 Agonizing Remorse (Not currently legal in Standard)
2 Devout Decree (Not currently legal in Standard)
2 Duress
2 Epic Downfall (Not currently legal in Standard)
2 Legion's End (Not currently legal in Standard)