My initial idea for a 1,250pt list using Legion of Grief rules:
Heroes - Wight King (General), Necromancer, Banshee.
Battleline - Dire Wolves x10, Skeleton Warriors x20, Skeleton Warriors x20.
Behemoth - 'Black Coach' made from a Deepkin shipwreck
Other Units - Myrmourn Banshees x8
Endless Spells - Lauchon, Soulsnare Shackles
Total - 1,250 points