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Since all Daemon lords of war are restricted to 25% or less, I will use CSM LoW:

Brass Scorpion List
Primary Detachment: Chaos Daemons CAD[u]
HQ
(300) Kairos Fateweaver
(150) Herald of Tzeentch, ML3, disc, exalted reward
(105) Herald of Tzeentch, ML3, lesser reward
Troops
(99) 11 Pink Horrors
(45) 3 nurglings

[u]Secondary Detachment: Chaos Space Marines CAD
HQ
(350) Be'lakor
Troops
(51) 10 cultists, 1 autogun
(50) 10 cultists
Lord of War
(700) Brass Scorpion

Plan is to grimoire fateweaver and do not much else unless against new eldar, in which case I will either invisible the Brass Scorpion (against WK spam) or Grimoire it (against something like cent-star).
Thoughts? Advice? Intended for competitive meta so any advice is useful.

making it invisible is a bit risky, as Runes of the Blood God means you auto perils. Bit harsh on belakor.

You can get a Scorpion cheaper using the Renegades if you don't want belakor.