Hi, I hope you don't mind beginner questions:
Warcry sparked some interest in AoS and Nighthaunt in particular purely for aesthetic reasons and I'd like to expland my warband to Legion of Grief. Summon flying spooky ghosts and stacking up bravery reduction sounds like a fun theme.
How should I start building up to 1000 points? Is Ben Savva's list a good orientation? So focusing on myrmourn banshees, chainrasp horde and proper endless spells? I know that Forbidden Powers plus FAQ is mandatory, but do I need both NH and LoN Battletomes or the GHB 2019 even?