Trying to fit a unit of incubi, wyches, reavers and beast packs in one army

I've had this idea for a list, where I would use a unit of incubi, wyches and beast packs to assault the enemy army, whilst a reaver unit would decapitate unit, hit a tank from behind and seize linebreaker. Then this would be backed up by supporting fire from trueborn, ravagers, dissie raiders/venoms, mounted by either gunboat warriors or msu units.

First and foremost, its got some cool factor and primarily my old list had only one assault element (wyches), which could possibly be de-meched before they can be launched on turn 3/4 from reserves to seize an enemy objective. I theorize, that with multiple assault units, someone will get there.

Now I once again, ask for ideas on how to successfully realize this idea into a viable 1850 list with 1 or 2 characters.

Well, what you have said so far seems to be:

HQ
tbc
ELITES
Incubi
Trueborn
TROOPS
Wyches
Warriors
FA
Beastpack
RJBs
HEAVY SUPPORT
Ravager(s)

Given that you specify Dissie Raiders, that looks light on Anti-tank, even with the Ravager(s) and RJBs. So I'd suggest Blasters for the Trueborn and HWGs for the Wyches.

Assuming you play the book missions, you'll want several units of Troops too, especially as the Wyches aren't very survivable. I'd suggest either 2 x 5 Wyches or one larger unit, with 2-3 units of Warriors.

What models do you have? And any idea what opponents you may face?

Trueborn have blasters.

The Wych is a large unit as it has to be some sort of threat. The Warriors would probably go MSU raiders.

I am planning my list, before buying models.

One Archon leads the Incubi, and a character either another cheap archon/haemy for the wyches.

Anti-tank duties are delegated to reavers, ravagers, haywire wyches, blasterborn.

Fire support duties are delegated to dissie raiders and venoms.

Most likely i'll be duking out against my brother's tau, and maybe my own chaos, but i'd want it to survive against the worst matchups, IG and Necrons.

Here's sort of what i envisioned but sans reavers

HQ

Kai’laia the Faceless- 120 pts
Archon with Venom Blade, Shadow Field, Phantasm Grenade Launcher

Arvan’Rath the Forsaken- 95 pts
Archon with Venom Blade, Shadow Field

Elites

Thrice Accursed- 173 pts
4 Trueborn with Blasters
Venom with 2x Splinter Cannons,

Requiem of Nightmares- 173 pts
4 Trueborn with Blasters
Venom with 2x Splinter Cannons

Soul Reapers- 153 pts
4 Incubi
Venom with 2x Splinter Cannon

Troops

Corsairs of the Midden-Dark- 180 pts
10 Kabalite Warriors, Splinter Cannon
Raider w/ Disintegrator, Splinter Racks, Night Shields

Touch of the Void- 180 pts
10 Kabalite Warriors, Splinter Cannon
Raider w/ Disintegrator, Splinter Racks, Night Shields

Cult of the Faceless- 200 pts
9 Wyches, 1x Razorflail, Hexatrix w/Agonizer, Phantasm Grenade Launcher
Raider w/ Disintegrator

Splintering Viper- 105 pts
5 Kabalite Warriors,
Raider w/ Dark Lance

Fast Attack

Carrion’s Feast- 156 pts
3 Beastmasters, 5 Khymerae, 4 Beastpacks

Heavy Support

Stygian Dirge- 105 pts
Ravager with 3 Dark Lances,

Malice Unbound- 105 pts
Ravager with 3 Dark Lances,

The Long Bleed- 105 pts
Ravager with 3 Dark Lances,

Total- 1850 pts