Arch-Fiend
Explorer
The reaction to giving those sub-classes abilities that reach even a bit beyond the aggressively mundane tends to be very harsh.
Also, it's just a little weird that you whinged enough over the realism of armor to come up with a fairly neat simulation of D&D armor as both PD & DR (to channel GURPS for a moment), yet are also hot to throw realism to the winds by making the most basic of character stats overtly supernatural.
my reason is the conflict between rationalizing the impression one gets from the initial interpretation of hitpoints vs damage and how these 2 systems which do interplay seem at odds with each other in what they reflect to those with only experience with regard to damage in the physical sense which is most people living in reality.
the requirements to solve what i see as a problem with what i just said is very minor compared to the requirements required to redesign the function of armor in D&D, im also not advocating for my design of armor in D&D to be the standard, and im only arguing for my interpretation of hitpoints to be the standard if WotC insists on a standard existing. if WotC will stop arguing that theres a correct interpretation of hitpoints then ill stop having people tell me that im wrong about hitpoints and ill start having people simply tell me "this doesent work with every interpretation of hitpoints but works if your doing hitpoints as durability"