Looking interesting!
A few things I thought would be good additions to aboleths...
- An insight bonus to AC, attacks, and/or saving throws, to represent their "outside our realm" nature
- The ability to actually create skum...I find it odd that they made 'em, but have no apparent means to do so
I'm guessing he means either a flat extra bonus, or perhaps +Wis to AC and attacks, etc. Or even +Int. To represent the fact that they have knowledge and wisdom beyond the ken of us mortals.
Hmmm, I don't know much about psionics besides what conversion work I do. What if you just write a new power, "greater false sensory input" or something, that does a bit more and allows augmentation as you like? We sometimes write new spells for the CC, so I don't think that's too much to do.
Ahh, I did not know that power existed. Is it from another source, or are you going to write it?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.