I've probably done more research this time than before. I begun work on it before the 3.15 was released and I didn't want units to appear in sprites and stats before the nation was finished, so I went for descriptions first this time.
Not making graphics and only making descriptions made me read more than usual. Also I'm quite fond of Middle/Near eastern ancient myth and history.
I've used the bible, the Zohar, book of enoch, some modern writhings on Ugaritic religion and the rephaim texts, and of course an osprey book (ancient armies of the middle east)
Since I'm quite fond of the nations I've been afraid that they would be too strong. I hope the drawbacks are enough to make them not overpowered. Since I'm not very used to design thugs/SC, and the nations are based on few mighty men I'm not sure how to properly balance them. There is no real precedent. Niefel giants are more powerful with their cold aura, but the Fomorians are probably inferior.