Came across from this: http://www.miniwargaming.com/forum/viewtopic.php?f=60&t=75821
And here's a list that will do moderate against Imperial Gaurd:

HQ

- Herald of Tzeentch (100)
+ chariot of tzeentch, bolt of tzeentch, master of sorcery

- Herald of Tzeentch (100)
+ chariot of tzeentch, bolt of tzeentch, master of sorcery

- Herald of Tzeentch (100)
+ chariot of tzeentch, bolt of tzeentch, master of sorcery

- Herald of Tzeentch (100)
+ chariot of tzeentch, bolt of tzeentch, master of sorcery

Elite

- 3 Fiends of Slaneesh (90)

- 3 Fiends of Slaneesh (90)

- 3 Fiends of Slaneesh (90)

Troops

- 5 Pink Horrors (100)
+ bolt of tzeentch, changeling

- 5 Pink Horrors (95)
+ bolt of tzeentch

- 5 Pink Horrors (95)
+ bolt of tzeentch

- 5 Pink Horrors (95)
+ bolt of tzeentch

- 5 Pink Horrors (95)
+ bolt of tzeentch

- 5 Pink Horrors (95)
+ bolt of tzeentch

Fast Attack

- 5 Seekers of Slaanesh (85)

- 5 Seekers of Slaanesh (85)

- 5 Seekers of Slaanesh (85)

= 1500 points

Wave 1: 4 heralds on chariots, 4 pink horror units with changeling.

Should you accidentally roll 1 or 2 for Daemonic Assault, it's best to hide those slaanesh units somewhere they don't get shot at, and then move whenever possible.

Slaanesh based models, would be very useful. They have the higher initiative to get the first hit to make sure they will always win combat. Deep strike them in the fray, then use your Tzeentch based models to soften up the juicier targets.

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Chaos Daemons-2500 points, Khorne,Tzeentch 8-0-1

Blood Angels-850 points,1-0-1