[Standard] Mono Black Zombies ate my neigbor (and now he is one)

[Brycegladwin]

Mono Black Zombies ate my neigbor (and now he is one)

Please review and let me know of any mono black synergies I can better utilize within the Amonkhet set.
Please also try to keep the theme the same.  I really like the idea of my creatures deaths being a big thorn in my opponents side.

Uses mono black only "on death effect" creatrues and enchantments to keep hurting your opponenet.  Also uses zombie tokens and zombie lords to keep a army churning out. 

[JoostSal]

You could use relentless dead, diregraf colossus and more plague belcher