So here is the current situation after the first session:
I set up a campaign starting at level 8 for 2 of my friends and 2 people they know. Overall its pretty basic, nothing to extreme aside from a pantheon change, a few fixed regional themes, and a a modified taint rule.
I allowed a flaw and a trait, as well as an extra feat all together to allow for everyone to take a pure soul feat, or another. everyone took a pure soul feat. (separated into 2 feats, Pure Mind for depravity and Pure Body for corruption to keep taint relevant).
So far its pretty well balanced in terms of the party with a few exceptions, or rather, certain issues i cant deal with without targeting that one person, or cant without making it obvious.
The party consist of all level 9's now: A Kobald rogue that can deal large amounts of sneak attack damage. A human dragonfire adept going for metabreath feats. A Star elf (or something from FR) cleric/radiant servant of pelor focusing on undead turning. And "another one of those elves" psion/warblade/ swordsage. Those last 2 have weapons of legacy. The cleric is similar to the holy symbol in the book and isnt really that bad. The other is a adamentine sword that just does random stuff that together with his build turns into a difficult situation to deal with. I can deal with the rogue easily enough, since he is not to much of a skill monkey and oozes just wreck him. The cleric I can usually sway his spells to large amount of restoration/ utility spells since 2 of the people HATE taint, add in turn resistance if need be,and just not include undead. Dragonfire adept is pretty alright since constant invisibility/flying cheese is pretty easy to mess around with and until the higher levels the breath is pretty straight forward. That and she is a nice player who likes flavor over optimization. The Psion/Initiator guy is the hard one to beat for the reason below.
Right now, the Psion/Initiator has an AC of 29.
I managed to find where a lot of his AC is coming from, but until I look over his actually sheet I can only guess exactly how much. He getting around 7 from Inertial armor, the bonus from swordsage, dex and a few magical item. He has several feats and stances to grant him singular dodge bonuses, which I am going to see if he is including in that total.
I figure I can lower his Ac by telling him he never cast the armor or designated a target for his doge abilities, but that would generally last 1 round, and unlikely to happen again for the duration of the game. The problem here is that I cant legitimately hit him with anything at their CR baring specific creatures, spells, and situations (crit, prone, ect) or monsters who are to powerful. Due to his large amount of dipping he also has above average saves, especially to sort of mind affecting magic. While I could DM cheat, he would likely catch on quickly if i pick monsters that can hit him easily, or always use magic to get him. I plan on forbidding ToB and psionics after he dies, or general dips in classes. The reason being is he is a player who optimizes and believes if it can be done RAW the DM HAS TO allow it. Until then im kinda stuck.He also hardcore role plays which makes this especially hard, and has the contradicting thought of: (paraphrasing) "Your a dick DM if you build an encounter to deal with a specific person or the character strengths. Oh, but you need to include undead since our cleric is a niche undead blowing-up build" And will likely quit thus ending the game until 2 new people van be found. Since he is someone elses ride/ they will likely quit if he does.
One idea i had is psudonatural creatures with their 1/day true strike, but that can only last so long, likely an adventure or 2 before he also catches on.
Giving everything levels of a class with a good BaB is just a bit more w ork than I want to put in. Even advancing HD just to get it to hit is somethign i think is unnecessary him unless i need a better monster for the adventure im making for the whole group, not just him.
The other idea I had is to start throwing in a good amount of dispel magic effects to deal with his inertial armor and items. But that still leaves him at 18-22 ac.
The only other this is the cleric is thinking of clever uses of spells, or taking their wording to heart. For example. I would say protection from evil would only apply to the mind control effects of evil creatures, or spells that have the evil discripter on them just to limit the power of the spell. Or trying to find a large number of objects using the detect objects spell on an item your looking at. So the spell either focuses on that one item your looking at, or a ton of similar objects. For example. I had a trapped summoning gem that was being widely distributed in a large city,they had one. His idea was to detect objects to find them all. Or since he detected thousands of mundane gems similar to it ( an item that would be all across this town for campaign specific reasons), to go around and detect magic and find them all. Which i ruled was unfeasible.
Eventually i have to think of ways to abuse miracle since this guy is smart enough to not do anything obviously against the deity's wishes.
So if anyone has any ideas on how to deal with these, any would be greatly appreciated.
Btw, i know i should have checked the guys build, but we had little time and the first adventure was a test to find out these things since we had a limited amount of time that day.