Chris has hit upon something that will work, I believe.
Lands of Earth & Fire: (Chris I don't trust your taste in team names anymore
, I want another name if not Haleheim) Ulm, Agartha, Abysia, Marginon (this will work, though I hate giving blood to anyone else, as rare as it is)
Sanguinarium: Mictlan, Jotunheim, Pangaea, Vanheim.
If sanguinarium is going to drop Abysia, and take on anyone else it should probably be Mictlan or another suitable weak astral nation.
Supplicants of Set: Ermor, Shinuyama, C'tis, Machaka.
I like it.
Usurpers:Pythium, Bandar Log, Arco, R'lyeh,
I like it.