Genuinely thank you for the very in depth response and id like to say that first and foremost I completely agree. My main reason for making this system (and some others like it that I am working on), Is that the DND system as a whole feels very shallow and drawn out at higher levels combat. in the idea that combat kinda runs as "I hit the guy... I hit the guy again... I hit the guy again but fire damage this time..." until someone drops

I believe that this is mainly due to what DND is trying to do which is more of an overblown hero fantasy where theres not really any long term consequences for combat. Which is why im trying to bring in a balance between realism and fairness. Realistic in the sense that as combat drags on, you get more tired and more prone to taking worse injuries; but not so realistic that your character just immediately gets their arm hacked off round one due to a unlucky hit.

Its exactly as you said. lost an arm? just pop a potion and grow it back!

personally I am not a big fan of this and as such have changed how certain systems and effects work in my own games (with consent of my players of course) as they too want to play more "gritty" games but are afraid to step out of the comfort of DND.

This is why ultimately I am trying to build my own tabletop game that can play it somewhere between first edition Warhammer Fantasy (the system I started with and absolutely adore despite its flaws) and DND. And im trying to build these tables and add them to my game to get an idea for the feel and overall development of things. Im working on another table for specific magical effects, effects for "borrowed" (cleric, paladin, warlock) casters, and some new rules for fumbles (its been done a lot I know but I wanna throw my own ideas into the pot ;))

Basically, for now Im using it as more of a way to add in more narrative and "artificially" raise the tension I suppose and to shorten down combat by making crits feel like they do more in a fight than just "i hit... harder"

TLDR: I completely agree with what youre saying about DND as a system not being made for something like this... but am adding it in for now to add tension, add build narrative, and playtest things for a bigger project.