[Valerius]

Squirrelloid, I like most of your changes. There's two that stand out to me as possible problems.

GoR is a fun spell and I'd like to see it used more. But making it this cheap can raise problems and I think the cost of GoRing an umbral is one of them. I'd prefer them over a bane lord even at the same cost. At only two thirds the cost ... well, I think that's going to be abused. Obviously Agartha needs help but I'm always wary of changes that create loopholes. As far as a solution, you could raise the cost of GoR to 10 gems or price umbrals assuming they'll be GoRed. And of course, I don't think you'll need your pretender to GoR each one given how easy N is to branch into (maybe your pretender will forge some boosters but that's a one time thing).

I do have one suggestion that would help Agartha across the board - remove the cold blooded attribute.

I'd also like to echo the previous comments about Ulm's MR increase. Perhaps it won't prove to be a problem but I'd be more inclined to go with a 3 point increase and see how it goes.

I like the idea of the improved/more available healing units. It ties in very nicely with the diversity mod. If you are relying on those summons instead of tarts you may not have the Chalice/GoH - this way you can heal them more easily if they receive an affliction. It also helps national troops who can now gain experience without likely being crippled eventually. Though this does to some extent take away from the uniqueness of Pan's recuperation ability on all its troops.

The Treelords become a lot more worthwhile with the healing ability but, as you point out, you're still better off getting a Faerie Queen. What about having them generate N gems? This way you get your investment back over time.

Do you plan on making any changes to Eriu? I'm sure I could come up with some borderline OP suggestions if you want.