Here's your sample Necrarch list then.

***

Necrarch Lord -- lvl 3, Master of the Black Arts, The Awakening, Forbidden Lore, Spell Familiar, Scroll.

Necromancer -- lvl 2, Power Familiar.

Wight Lord -- barded nightmare, lance, heavy armour, shield, Rod of Flaming Death

Bit of a surprise, eh, this one? But it's good!

3x 20 Zombies -- standard

3x 6 Ghouls

3x 5 Wolves

5 Bats

2 Spirit Hosts

6 Black Knights -- full command, barding, Banner of the Barrows

5 Black Knights -- musician, barding

Total: 1999pts

Models: 114
Power: 8, Rod
Dispel: 6, scroll x1

***

Wight Lord goes with the 6 Knights.

5 Knights are your reserve flankers, either on the same side as the Wight Lord's unit, or on the other side, near your infantry blocks.

Keep your knights within 24" of your Lord, who will hopefully have Danse with 5 spells to roll -- unless you're ridiculous unlucky.

One unit of Ghouls and Wolves each will suffice to play catching with the enemy on the Wight Lord's flank. The Wight Lord can also attempt to panic any troublesome skirmishing or fast units that will otherwise cause trouble for the slower Knights.

Played cautiously and opportunistically, this list can be very difficult for anyone to handle.

Hope this helps.