Was thinking about the old City Guard army list that Dark Elves used to have. Then I decided to write up a list as close to it as I could get, with a couple of "additions" here and there.
The idea is that it would be the City Guard of Naggarond. Unfortunately I don't have as many Black Guard as I would like, but anyways.

Malekith, Witch King of Naggaroth - Mounted on Black Dragon

Master - Battle Standard Bearer, Heavy Armour, Shield, Sea Dragon Cloak, Banner of Nagarythe

Sorceress - Lvl 2, Dispel Scroll, Lore of Fire
Sorceress - Lvl 2, Tome of Furion, Seal of Ghrond, Lore of Shadow

35 Spearmen - Full Command, Shields, Warbanner

35 Spearmen - Full Command, Shields, Banner of Murder

26 Crossbowmen - Full Command, Shields

20 Crossbowmen - Full Command, Shields

20 Black Guard - Full Command, Kouran, Razor Standard

8 Reaper Bolt Throwers -

War Hydra -

Total - 3997pts

It's not a competitive list, it's meant to be just a bit of fun. Plus an excuse to use Malekith on Black Dragon. The Sorceress's are basically there for channelling/buffing the army/weakening the other.

Just need to avoid playing Skaven with a Screaming Bell........