Multi-god is the way to go

Everyone but Khorne.

New list:

1849

HQ:

Lv.3 Lord of Change = 305

Divination, 2x Greater Gifts, 1x Lesser Gift

Herald of Slaanesh = 85

Beguilement, 1x Lesser Gift

Herald of Slaanesh = 80

Seeker, Grace, 1x Lesser Gift

Herald of Nurgle = 80

Fecundity, 1x Lesser Gift

TROOP:

20x Daemonettes (Champ, Instrument) = 195

11x Plaguebearers (Champ, Icon) = 114

10x Plaguebearers (Champ) = 95

10x Plaguebearers (Champ) = 95

FAST ATTACK:

20x Seekers (Champ, Icon) = 255

HEAVY:

Seeker Cavalcade (2/1 Exalted) = 155

Soul Grinder (Nurgle, Phlegm) = 180

Burning Chariot (Horrors) = 110

FORT:

Aegis + Quad-Gun = 100

After several games, I've decided to change my Slaanesh/Tz force into a more diverse multi-god force minus Khorne. As awesome as the dogs, Crushers + Karanak is, I want the majority of my fighting force to be Tzeentch and Slaanesh. Nurgle are there simply because I need objective drivers. Their T4 and natural Shrouded gives them unmatched resilience when compared to the other gods. Especially since the Herald is T5, gives the squad FNP and they hide behind the ADL (thus getting a 2++ cover), hopefully by an objective. For some wild reason, the Nurgle Herald has BS5, so he mans the Quad-Gun and all is well.

The rest of the units here are pretty self-explanatory. The Seeker Cavalcade pushes up with the Seekers, Burning Chariot (if needed) and the Lord of Change, while the rest of the army sits back. I will hold 1-2 units of PBs in reserve, just in case they need to grab separate points around the map, or if they need to backup the primary objective holders on the ADL. The Icon will guide them there.  Lord of Change picks up Divination and spellslings his way to victory, buffing and nerfing units as he please.

Once the Seekers move into a good position, the 20-man unit of Daemonettes will enter, hopefully get a good D3+6" Run roll, and join the upcoming slaughter. The Soul Grinder will sit behind the ADL to support the scoring PB unit.  Since he is behind the Quad-Gun itself, he will benefit from a cover save.