Crimson Vow Dimir Zombies BO1

The deck really takes off if the opponent is not dealing with your enchantments.
Faceless Haven is an option; I haven\’t really had problems with mana because of it as the first round or two you play single black creature(s) and/or Deadly Dispute, Ghoulish Procession or Tainted Adversary.
The deck is basically built around Necroduality and the ETB triggers of Cemetery Desecrator and Overcharged Amalgam.
Geralf and Bladestitcher adds evasiveness and power to the other zombies.
Narfi, when it enters with Necroduality on the field, triggers Ghoulish Procession. You could maybe drop a Narfi for Mirrorhall Mimic, I\’m looking for a place to add it. Adding two would be great.
If you have a Champion with Necroduality, every zombie you play will trigger the Champion twice.
Shambling Ghast helps you either remove x/1 creatures or ramp toward Narfi and/or Necroduality.
I added some board wipes and counters to the sideboard for more control vs aggro decks.
Graf Reaver can be added [to the sideboard if playing best-of-three] to spot remove a planeswalker.
Mirrorhall Mimic is another good option to add if you want to copy your Champion or even better Overcharged Amalgam or Cemetery Desecrator for their ETB triggers, which will the also be copied if you have the Necroduality on the field.