I'm currently trying to devise an adventure that focuses mostly on Night Herads/Dominion of the Black. I know Iron Gods and Strange Aeons have a lot of extraterrestrial influence, but I'd like something a bit more direct.
I'm trying to look through all the creatures that are associated with the Dominion, as well as trying to see what creatures the Night Heralds would ally with or summon.
Of the creatures I've found so far, most are either too high level or uninterested in the Night Heralds. I also need to find CR appropriate encounters for a lower level party.
Anyone have any ideas?