This is a midrange deck that generates card advantage with Trail of Crumbs. It can slowly kill people with Cauldron Familiar plus Witch’s Oven or execute a pseudo combo kill with Mayhem Devil plus God-Eternal Bontu.

Planeswalkers (2)
2
Vraska, Golgari Queen
Creatures (24)
4
Cauldron Familiar
4
Gilded Goose
4
Mayhem Devil
4
Murderous Rider
3
Questing Beast
3
Shifting Ceratops
2
Massacre Girl
Artifacts (4)
4
Witch's Oven
Enchantments (4)
4
Trail of Crumbs
Lands (26)
4
Blood Crypt
1
Castle Locthwain
4
Fabled Passage
4
Forest
1
Mountain
4
Overgrown Tomb
4
Stomping Ground
4
Swamp
Cards (60)
Sideboard (15)
2
Dead Weight
2
Ashiok, Dream Render
3
Lovestruck Beast
4
Thrashing Brontodon
1
Shifting Ceratops
1
Massacre Girl
2
Liliana, Dreadhorde General