Grampy_Bone
Arcane
Master theorycrafters here can tell you better than I can on the numbers. My intuition is that 14+5 won't get you very far, and that Paranoia generally isn't a hugely valuable feat. But I can always be wrong. With 3 PER the detection won't do much, either.
OK, so a high CON psion - never went for such a mix. The vest is fine but it won't offer enough in sheer protection - as level 16 you should be able to craft yourself a 1k shield. My general go-to is Low + High + Efficiency. I guess the issue is that it's not built for full tin can (you want psi beetle), but you're too slow, and presumably all the PSI feats meant you didn't stack survivability stuff either. Did you not take Force User? 4-turn force field is godly, though the empowered punch is probably not so great for you so far into the game.
I do have force user and the force field is a nice ability to get out of trouble spots sometimes but usually the enemies just heal and stack up for a massive beatdown once it expires. Mania+telekinetic fist one-shots almost everything but the PSI cost is too high on repeat rounds. I don't like enrage because I don't get XP for the kills but it works as a last resort. I don't have some of the PSI skills yet. As for survivability feats I don't recall anything looking useful for a pure PSI person but I'll take recommendations. Stoicism + Conditioning? The bonuses seemed pretty lackluster.
Really though my build seems fine, I'm getting through the game, I just think the overall concept of Underrail's combat isn't completely to my liking. But it's fine.
Sure, I think it's fine and you don't have to minmax. My point is, as others have pointed out, you seem to be rummaging around for a range of bonuses here and there, but UR's systems really reward someone who picks two or three synergistic strengths and hones them sharp. Don't like it, don't want to do it? That's OK, it's your game.
As for the prereqs, I wouldn't make the realism argument, but I'd say the whole system is built around using skill/attrib prereqs as gateways for feats themed around that skill. And again, because UR is supposed to encourage you to specialise, I think that's fine.
I guess I don't see how I could have min-maxed more? I'm pure PSI nuker-assault with no guns no stealth no melee no dodge/evasion. I've looked at shoring up some weak spots in the build that have revealed themselves in hindsight but I wouldn't say this is some intent to create a balanced jack of all trades, far from it.