Ah, damn it. I knew that patch would break coastal recruits. I'll fix it for MA Sargassia and other nations with coastal recruits.

Another bug: Sargassia has a basic commander, priest, and some basic units on coastal recruit, but not coastal fort recruit. This is because the "coastrec1..." command is being parsed as "coastrec". "coastrec" allow the given unit to be recruitable as foreignrec on coasts, and "coastfortrec" will allow them to be recruited in coastal forts.

Oddly, "coastcom1..." does work, but only outside of forts. You'll need to add "coastfortcom" for that; while the modding manual states that "This commander can be recruited in (terrain) provinces with or without fort." it isn't true.

oh that makes so much more sense

Blood magic summons is a bug, they are supposed to be holy summons that you get access to with your prophet.

Thank you! Glad to hear that you liked them. As for algoids, I think I should be able to do that.

Cont.
In the MA, you have these cool summons that require blood magic, but literally no blood mages of any kind. I think that replacing the death randoms on the parasite starspawn with blood randoms would make it difficult but more possible to get enough sacrifices to empower other mages to cast the summons. This also seems good because normal r'lyeh starspawn don't have death magic anymore (was removed in 6)

In LA, it feels weird that there are no parasite units of any kind. Even if most of the summons should be gone, keeping the calcified manikin summon would be cool and relatively harmless (the sargassids aren't allowed to parasitize living things anymore, but can still infest skeleton).

Finally, the normal calcified skeleton summon should probably have some scaling with caster level (both your calcified manikin spell and the vanilla reanimation do)

I've been playing some of each age of sargasssia, and its been great fun!
A well made nation
Some suggestions:

EA sargassian generic algoids feel incredibly strong, and also kind of invalidate your other kelp units. Maybe making them not recruitable from unforted coastal provinces would help tone them down and give you a reason to recruit the laminarid, so that only your underwater forts can recruit them.