Morta

The Undying:

"And what do you need from old Rattles now, em?"

* is somehow still alive after everything she went through
* specializes in microbiology. She has made it her life goal to observe cases of all the diseases known to dragon kind. Morta has travelled frequently to the central wound of the plaguelands and thus contacted and survived numerous diseases.
* she moves in sudden jostles and twitches. She also secretes multiple organic matter (of which she will happily study and offer as microbial samples). Her voice comes out as a wet croak.
* she has a journal full to the brim with details of the various conditions she studied and will offer some of its information/diagnose dragons if asked. This is pretty much the only reason why Serenia tolerates her within the clan territory. Morta lounges in a small shack in a remote outpost near the arcane plague border. Very few are allowed to visit her, out of serenia's concern of contacting and bringing back a disease.
* has the complete opposite view on survival than Archimedes. She considers the latter's body modification/healing to be a soft approach to survival and this a fake front as a plague dragon. They often clash as a result.
* Morta holds non-plague flight dragons in disregard and is fairly judgememtal of plague dragons that she considers "do not follow the Plaguebringer's cause". This pretty much makes Emperor the only dragon she harbours any respect for in the clan.

Born from a Necromancer and a Zombie this dragon is as dead as one can come from parents like that, strangely enough she keeps growing normally even without a beating heart.