Actual list after the jump, of course!
2000 pts
HQ
Herald of Tzeentch, chariot, Bolt of Tzeentch, We are Legion, Master of Sorcery, 110
Herald of Nurgle, Chaos Icon, Noxious Touch, Flies 90: he goes with the plaguebearers.
Herald of Khorne, Juggernaut, Blessing otBG, Unholy Might, Fury of Khorne 135. He goes with the Bloodcrushers.
Herald of Slaanesh, Chariot, Soporific Musk, Unholy Might, 90
Elites
5 flamers of tzeentch, Bolt, 205
4 flamers of tzeentch, Bolt, 170
5 bloodcrushers, Fury of Khorne, 210
Troops
5 Pink Horrors, Bolt, Changeling 100
5 plaguebearers, instrument, 80
9 daemonettes, 126
9 daemonettes, 126
Heavy Support
Soul Grinder, Phlegm, Tongue, 185
Soul Grinder, Phlegm, Tongue, 185
Soul Grinder, Phlegm, Tongue, 185
The Herald of Tzeentch, Soul Grinders, flamers, and Chariot of Slaanesh will be doing most of the tank-popping. This list has rending where it doesn't have anti-tank, and a difficult-to-remove Icon with the Herald of Nurgle and Plaguebearers.
and also, heheheheh, triple soul grinder. Evil.