I agree, having loyalty as their racial promotion makes the most sense. As for the healing abilities of the Mord-Sith, they have almost modern methods for bringing people from the brink of death, aka CPR and such things if their torture victim dies of shock or heart failure, or some respitory thing.
But asides from such first aid procedures, they have no ways to really cure ill-nesses, only heal wounds and in some cases keep people from dying on them. I'm not sure how to implement a unit that knows CPR
As for magic immune, I think its a good idea.
speaking of leaders, it would make sense for Darken Rahl to have aggresive and charismatic, while Richard Rahl would have Tolerant certainly. Not sure if he should have Organized, or Philosophical, ect. It is hard to say.
Alternatively, Darken could have aggro/organized (or aggro/arcane), and Richard could have Tolerant/Charismatic.
But asides from such first aid procedures, they have no ways to really cure ill-nesses, only heal wounds and in some cases keep people from dying on them. I'm not sure how to implement a unit that knows CPR

speaking of leaders, it would make sense for Darken Rahl to have aggresive and charismatic, while Richard Rahl would have Tolerant certainly. Not sure if he should have Organized, or Philosophical, ect. It is hard to say.
Alternatively, Darken could have aggro/organized (or aggro/arcane), and Richard could have Tolerant/Charismatic.