Paszteciara: Just saw answer :D Yeah, build looks good - at the end I went another path and choose Favoured Soul build:
http://nwn2db.com/build/?15725 - I can recommend it for those who want to use more bluff than persuation and it's really strong.
Valkinaz: That amount of blff is frankly overkill for dialogs. Biggest check is 40 points and its when you piss off one of MotB characters, all other bluff checks rarely higher then 25-26. Same with diplomacy, intimidate, lore( and taunt - 20+ points coupled with other bonuses is enough to max it so its more then possible to max several of them at once. As for use in OC+MotB diplomacy is the most prevelent, bluff the second(pretty often), then intimidate(decently rare), then lore(quite rare) and last one taunt(almost nonexistent)
For feint itself - most of enemies in OC+ MotB is low difficulty rabbish gangs which are not exactly hard to hit. And this guy you chose has like zero AoE capabilities, severely cutting you damage per round. Where Warlock30 would kill everyone in 2-3 eldritch doom, you will have to waste 10-12 rounds, couse even if you one shot enemy - there are still 10 more enemies around. Additionally as a result that apart from select few OC+MotB enemies has rubbish AB as well, Divine shield is a waste of time in companions. If enemies cant hit you without it - no reason to waste rounds casting it
Spot and listen are useless skills in the companions since ai almost never sneak there and even when it sneaks - it lack hips so skills like spot are useless in OC as its main appeal is to catch hipsters and feinters, which are nonexistent in OC+MotB
Pretty much only guy who has good AC(through not as good as pvp build) - final boss of MotB and you can still screw up him in melee using Expose weakness(require epic prowless and evasion) which is bugged and always autohit(it not always has its effect, but it always deliever hit damage)
TLDR: It is a good build for PW or PvP, but pretty unoptimised not only for negotiator role, but for OC+MotB battles as well.
I've just finished OC and MoTB with this build - at the beginning it was not the best experience, but around 10 level it became really cool. Must say that the game was pretty easy for me, I had plenty of spells (but I had access to 9 lvl spell on lvl 27) to buff my squad. Funny thing: I took only spellcasters with me (so no Okku - good character) and I never had any trouble, was a way too easy.
But yup, no negotiator here, but I had my fun. Now I can think about characters in SoZ. A Favoured Soul can be decent build in PvP, I don't think I will use it in SoZ.