Basically, I'm just looking at silly shenanigans I can do with leadership using dark eldar and harlies. I thought I'd get everyone's feedback and see what you thought. This is mostly a thought experiment as these shenanigans seem prone to either blowing away certain lists or simply falling apart due to having too many fragile eggs in even more fragile baskets. And the fact that fearless exists doesn't help either.
DANCE OF DARKNESS
PRIMARY DETACHMENT (DARK ELDAR)
155-Archon: Webway Portal, Shadowfield, Armor of Misery, haywire grenades
135-Warriors X 10: Blaster, Splinter Cannon, sybarite with phantasm launcher, splinter rifle, haywire grenades
100-Raider: Night shields, splinter wracks, torment launcher
135-Warriors X 10: Blaster, Splinter Cannon, sybarite with phantasm launcher, splinter rifle, haywire grenades
100-Raider: Night shields, splinter wracks, torment launcher
Mandrakes X 3
Mandrakes X 3
CAST OF PLAYERS 502pts
Troupe X 12:kisses X 11, troupe master with haywire grenades and storied sword
Shadowseer: Mastery Level 2, Mask of Secrets
Death Jester
HEROE'S PATH 310 pts
Solitaire:Cegorach's Rose
Shadowseer:ML 2
Death Jester: Haywire Grenades
So the idea is this: Infiltrate the heroe's path characters behind BLOS terrain. Mandrakes can either hide in my deployment zone inside some terrain, infiltrate to become a turn 2 threat, or outflank to reach those hard-to-get objective slater into the game. Their stealth + shrouded should make them semi-survivable so long as they keep their distance. The warriors in their raiders deepstrike. The archon webway portals in with the cast of players. With some luck (and maybe some help from a warlord trait), I can drop the harlie blob with the mask of secrets and the armor of misery wherever I want, then proceed to unleash a barrage of phantasm launchers, mirage launchers, psychic shrieks, etc. into the enemy. If I take psychic shriek on both shadow seers, I should be able to do a lot of damage to a flank of my choosing plus some healthy damage to the enemy's center depending on where I go with my webway.
Lots of threats in the enemy's face. Lots of fear. Lots of punishment for the enemy's -4 to leadership. And don't forget the jester is effectively working with a -6 to leadership as he forces my opponent to fall back off the side/rear board edges or simply clears some space for my harly blob to work.
Edit: If I were to expand it up to 2,000 points, I'd throw in an allied corsair detachment with a neuroshredder on a void dreamer and some corsairs with missile launchers who can poke at tanks from my back field while staying safe behind BLOS. I'd also try to find points to hand the archon his own phantasm launcher.