Do we all ignore that his ability is restricted to non-DEATH units? I can't imagine a tournament player will calculate the efficiency of the ability without taking into consideration that it will be completely useless against certain matchups. Casual players will probably won't touch it aswell if there's a lot of DEATH armies in their local meta.
So if Nighthaunt will be a strong army, the Scriptor Mortis will be a bad choice and if Nighthaunt will stay weak he'll a bad choice aswell because taking Nighthaunt will be a bad choice.
Can you please stop?
Paint dark skin, add tiger pelts, golden ornaments and savannah bases if you want an ethnic look. Don't misuse this hobby to be degrading.
This will be a Krulghast Cruciator-like debate again, right?
Don't exploit the crappy wording and play RAI. It's probably not intended for Nagash to benefit from this ability.
What yould a Nighthaunt list with Nagash's new warscroll look like? https://www.warhammer-community.com/wp-content/uploads/2021/12/XTPR7PzBSVcNAAOd.pdf
GW did a great job to normalize bulky and impractical rule books to create more profit. Now people are shocked that they get their rules in a convenient booklet.
But that's not relevant for a beginner guide. The guide already lists a lot of Nighthaunt units that are a bit too expensive to ever include in my lists, but they need to be mentioned.
I was surprised, too. But @EnixLHQ asked for help to create a list of the allies and only @Landohammer seemingly wrote a list that fitted the guide and he left Mannfred out. When you paraphrase your argument, he'll probably include it as well. Radukar the Beast woudn't be "the most expansive entry" in this list anymore.