I have no idea how this list would do, but I think it should be fun:
Ranger Warhost of Lahnn, Farseer of the Alaitoc
HQ:
Farseer Lahnn - spirit stones, runes of warding, runes of witnessing, Divination power (Prescience la), Doom, jetbike, singing spear
ELITES:
Harlequins (10) - all w kiss, incl. Shadowseer
TROOPS:
Pathfinders (5)
Pathfinders (5)
Rangers (5)
Rangers (5)
Rangers (5)
Rangers (5)
FAST ATTACK:
Warp Spiders (6) - w Exarch, two death spinners, powerblades
Swooping Hawks (6) - w Exarch, Hawk's Talon, Skyleap
HEAVY SUPPORT:
Fire Prism - naked
Wraithlord - bright lance
Wraithlord - bright lance