Jack Simth said:Chances are it's perfectly legit. He only used two, though, so it could be worse.
Consider:
Inertial Armor (+4 Armor bonus, augmentable)
Force Screen (+4 Shield bonus, augmentable)
Precognition, Defensive (+1 insight bonus to AC and saving throws, augmentable)
That would give +9 in bonuses; with a base of 10, that's 19. If he had a dex bonus of, say, +3, he could have 22. If the mage shrank him for +1 AC, that would make for 23.
At second, he could have used a fully augmented vigor for 10 temporary HP; further, if he was an Egoist, he could have used Thicken Skin to get another point of AC (natural armor).
My 6th level Egoist has Inertial Armor, Force Screen, Precognition Defensive, Thicken Skin, and Animal Affinity (+4 to Dex if desired).
So far, I usually only have Inertial Armor and Force Screen up in any given situation (AC 22 or 23 if I pump up Force Screen to max). The best I have ever done is have these two powers up along with Thicken Skin for AC 25 (and that was one combat out of about 30 now, 10 combats or so since I had all five of these together).
I have yet to even manifest Animal Affinity (I keep wanting to do it for the Cha bonus in a diplomacy situation, but it hasn't come up yet) or Precognition Defensive.
It is really tough to find enough time in a combat to get them all up, even with Inertial Armor typically up ahead of time. In the small combats, they are not worth wasting PP on. In the big combats, you are too busy knocking opponents down to size to worry about your AC for four rounds.
So yes, it could be worse, but it typically isn't. The duration on most of the AC powers for psions (except Inertial Armor at one hour per level and Thicken Skin at 10 minutes per level) are just too short (one minute per level for the rest of them).
Having said this, one day I will cast them all when I am about to ambush someone powerful and I will have a huge AC. Actually, my psion just went to 7th level, although I have not yet revised her, but at 7th level, she can max her AC to 32 for 29 PP, 34 AC fighting defensively. But, that's a lot of PP and not worth it for 90+% of the fights.