Why are there no cool builds in Kangmaker?
Everything that's even remotely cool is either gimped or ruined by something else.
For instance, mages were cool in BG because you could cast stuff like Time Stop, or massive damage spells, and felt very powerful. In Kangmaker, even aside from the rest mechanics that gimp them, they don't do that much damage or have any epic spells, unless you cheese the ray spells and become an arcane archer essentially.
If you wanted to build a cool swordsman, on the other hand, you got:
1) Duelist - completely gimped build. Look at its description, is there anything there that sounds even remotely interesting or powerful? Your defining ability would probably be parry/riposte, except it's a complete joke, since your base defense will be much higher than your BAB as a duelist, so parrying would be counter-productive. Your ultimate ability adds some stat damage or tiny bleeding damage? Wtf... So this is basically a snorefest build with high defense and nothing else. What this has to do with the notion of a duelist, I don't know.
2) Sword saint / kensai - completely retarded build. Sword saint, swordsman, etc. Anybody rolling this would want to create a powerful sword master, not a freaking mage, so why did they make this a hybrid magic class?
3) Aldori duelist - Basically same as duelist, purely defensive class that will put you to sleep.
4) Two handed fighter - this one is actually pretty decent performance-wise, putting out good damage, but zero skill/involvement. Just auto-attack and go to sleep.