New codex : 1850 Kabalite list

Here's what I'm going to try first with the new codex :

HQ:
Archon with SF, WWP, HWG and Agoniser

Court of the Archon : 5 Sslyth, 3 Medusa and 1 Lhamaen in raider with Splinter Rack and NS

Elite :
4 Mandrakes

Troops
10 Kabalite in raider with Splinter Rack and NS
10 Kabalite in raider with Splinter Rack and NS
5 Kabalite in Venom with SC
5 Kabalite in Venom with SC

Fast
5 Scourges with 4 HWB
5 Scourges with 4 HWB
5 Scourges with 4 HWB
6 Reavers with 2 Cluster Caltrop
6 Reavers with 2 Cluster Caltrop
Razorwing with 2 Dark Lances and NS

Bastion + Comm Relay

My deployment will heavily depend on the map and if I goes first or not but generally speaking, I'm going to have everything save the Court with archon and the Razorwing on the table. I can afford to keep some troop in reserve is required.

My fast attack slots are my AT save for the Razorwing that's there to deal with large infantry squads. I hope the court and the Kabalite will pour enough shots to deal with the rest.

On a second thought, I'll switch the Archon (although it pains me to do so) for a Haemonculus with WWP and Armor of Misery. A bit cheaper (which may allow me to buff my mandrakes unit) and could allow me to push a unit off the table while making my unit more resilient (it will get FnP 5+) from turn 2.

regarding the court, why bother with 15 point splinter racks for 10 shots? That's not very economic. Also, what is the purpose of (1) lhamian? She wont accomplish very much on her own

One thing that stands out to me about the list is the Bastion. The Realspace Raiders detachment in the book doesn't yield a slot for a fortification. Your list works as a double CAD since you have 2 HQ options and 4 troops. But if you are planning on using the Realspace Raiders Detachment, the Bastion has no place and would make you unbound.