Thanks for the answers Norfleet !
And about my Twiceborn mage, it wasn't a "strategy" to have him diseased : he was my RB Prenteder and got the disease from a site on his second province search on turn 12
... I saved him with a Regen ring when he had only 2 hp left, and he cast Twiceborn thereafter
There is some risk involved if I let him die however, lest him get Feebleminded or Mute
