I guess the Trollkin class set my mind on the track of "slightly monstrous adventurers with death-avoiding abilities". I googled "OSR skeleton class" and found only this: https://www.necropraxis.com/2014/02/06/skeleton-class/ so consider this class inspired by Necropraxis's. Essentially I've codified a bit more what it means to be an undead PC, and made the class rather more party-dependant.
