The recent Core Set 2019 spoiler of the reprint of the Death Baron made me consider the possibility of the return of the Zombies deck in the Standard metagame. The addition of the baron made it twelve lords in the list. Here below is what I see would be the build for the Mono Black version.

3 Demon of Catastrophes
4 Death Baron
4 Diregraf Ghoul
4 Dread Wanderer
4 Lord of the Accursed
4 Metallic Mimic
4 Scrapheap Scrounger

1 Cast Down
3 Fatal Push
3 Liliana’s Mastery
1 Murder
1 Walk the Plank

4 Ifnir Deadlands
2 Memorial to Folly
18 Swamp