Did normal with this (I'm not looking at performances, just to do the game and the story). I didn't find some spells (electrokinetic imprint and exothermic aura), but it worked all long.
I took some punch skills, because sometimes you're running low on psi (until you have 150, some psi armor and thermodynamicity). And punching things is good. Let me punch stuff if I want to :v
http://underrail.info.tm/build/?HggDBAoDCggAAADCoAAAAAAAAABwexhWcADCoMKgAHjCoD8rCCQ_FC4qZEhXYz1EUMKCworCssKcwq5x4p2gBeKfmAPiorUC4qWyBd-_Played it with psi/supersteel/kevlar riot armor, spiked gloves and boots (until I craft sea serpent spring boots and something better than "the claw" in endgame), omnipsi muffled psiband with cryokinetics upgrade and some hand-crafted hi-freq shield emitter with 600 shield.
Forget about "tranquility" in most fights : you won't play first. I took it for MOAR psi points. But sometime you'll initiate the fight, and will be MOAR stronger than usual
And "nimble" is for 15% armor penalty. It can make a difference. Especially if you craft some psi-crab shield (less cool than psi-beetle, but can block more dmg).
Feats are listed in order I found them.
Flaws :
- Big nagas are sport. Real sport
- Low movement.
- Punch are expensive in AP, but does kill alot of trash mobs.
- Can do nothing against dopplegangers, except yell and run.
- Explosives and bolts can sometimes hurt.
- Forget about locked things. Don't need anyway :v
- Long playthrought
Perks :
- Firework map cleaning.
- Kill everything close or far, organic or robotic.
- Lot of social skills.
- Specialized riot shield is gamebreaker against melee combat, especially "flurry" perk (enemy losts his turn if you parry one hit).
- Tanky.
- A "thick skull" build ! Awesome ! \o/
- Big backpack !
[EDIT] And this is a noob-build, so I surely didn't "optimized" it.