I got a hold of the covens book last week and saw the Carnival of Pain formation and wanted to give it a go, here is the result.
Grotesquerie
Haemonculus, scissor hands X2, liquifier, webway portal, khaidesi haemovores
Grotesque, 10 man, abarition, agoniser, liquifier gun X9, 2 units
---
Scarlet Epicureans
Haemonculus, scissor hands X2, hexrifle, webway portal
Wracks, acothyst, 10 man, electrocorrosive whip, hexrifle, ossefactor X2, 2 units
Cronos, spirit probe, spirit vortex
---
Scalpel Squadron
Wracks, acothyst, 5 man, electrocorrosive whip, hexrifle, ossefactor, 2 units
Venom, splinter cannon, chain snares, 2 units
---
Corpsethief Claw
Talos, 5 monster, ichor injector X5, stinger pod X2, twin-linked haywire blaster X2, twin-linked heatlance
---
Dark Artisan
Haemonculus, scissor hands X2, liquifier gun, webway portal, syndriq's sump
Cronos, spirit probe, spirit vortex
Talos, twin-linked liquifier, twin-linked heatlance
---
Covenite Fleshcorps
Haemonculus, scissor hands X2, liquifier gun, webway portal
Wracks, acothyst, 10 man, electrocorrosive whip, hexrifle, ossefactor X2, 3 units
Raider, dark lance, shock prow, 3 units
---
Macro-cannon Aquila, Void shield (on strongpoint)
Haemonculus, scissor hands X2, liquifier gun, webway portal
Lelith Hesperax
5000pts
My plan is to stick a haemonculus in the two grot and wrack squads without vehicles and deep strike everything but the cronos from the epicureans, the corpsetheif talos and Lelith due to her being placed in the Aquila to make use of her BS 9 so the furthest it'll ever scatter is thee inches.
The armies I usually face are IG, Marines (all codexes), Orks, and Necrons but I can potentially end up fighting anything but dark eldar.
Currently I'm trying it in a three man 5k apoc where the scariest things are a stormlord, one of the imperial knights both owned by the IG player and my aquila. We've only gotten one turn in before we had to call it for the night.
I'd love for some advice on how to improve this list.