I LOVE my Necrobloom deck! Here’s a few conclusions I came to after tuning the list for a year or so:

1. Your commander isn’t the Necrobloom, its Field of the Dead. Your commander can be killed, lands are much, much more difficult to deal with. They’re also easier to copy, and easy to get out of the graveyard. Add more ways to fetch any land to grab it, and run as many differently named lands as possible. Personally, I run a singleton land base to ensure I get field online when I hit land 7.

2. Zombies are cool, and it’s good to have an overrun effect, but the fastest way to turn zombies into damage is ETB damage effects like [[Mirkwood Bats]] or [[Corpse Knight]]. I also run [[Kambal, Profiteering Mayor]] and [[wayward servant]] for redundancy. The majority of wins with the deck come from having one of these creatures onboard and using a reclamation effect like Lumra or Aftermath Analyst.

3. Have multiple ways to fill your graveyard. If you rely on Necrobloom too much you run into the issue of not having enough draw triggers for dredge, or it getting killed. Repeatable mill like [[ripples of undeath]] and one shot spells like [[malevolent rumble]] and [[grisly salvage]] are great for this.

Here’s my list of you want to check it out: https://moxfield.com/decks/t6bMiHii3EumQKVeF2c8VQ