I've been playing around with this list a bit recently. It's kinda fun, and has the potential to completely decimate an army with it's alpha strike... but against some armies, it's just a flat out loss.
Farseer w/ Bike, Spirit Stone of Anath-lan
Farseer w/ Bike, Spear
5 Wraithguard w/ D-scythes
5 Fire Dragons
3 Falcons in a Squadron
Imperial Bunker w/ Comms Relay
Dark Eldar Allies
Archon w/ Armour of Misery, Web Way Portal, Shadowfield
Venom w/ 2 Splinter Cannons & Chain Snares
Harlequin Formation - Heroes Path
Shadowseer (L2) w/ Mask of Secrets
Comes to around 1850 points, 18 Comp. I can drop the comp down easily by swapping the scythes for something else.
The general idea is to mess with opponents leadership. Farseers/Hemlock roll telepathy, looking for Dominate, Terrify, Invis & Shriek. They go with the Scythes & Archon.
Shadowseer & Fire Dragons hitch a ride on falcons. Solitaire or Death Jester deep strikes on the Venom. Warriors man the Bunker & Comms relay to ensure everything comes in turn 2.
There's a bunch of negative leadership stuff being the shadowseers -2 12'' bubble, the Archons -2 6'' bubble. Hemlock -2 12'' bubble (but only for morale and pinning), The Deathjester causes a test at -2 if he causes a single casualty.
3 psychic shrieks per turn (farseers & hemlock), and the Shadowseer can (and probably will) roll on telepathy too.
I would like to get some warlocks in, for extra warp charges and chance at horrify. I can also drop the Shadowfield from the Archon, not really needed considering he'll be at the back of the unit.
This army loses hard against Imperial knights and anything mounted in transports on turn 2.