Any good Psion PRCs?

[Essence_of_War]

As the title says
Specifically Egoist.

I like the Sanctified Mind from Lords of Madness. It works well with being gish-y, and its mental protections kick-in faster than the Illithid Slayer (Partition Mind at first class level for SM vs. Cerebral Immunity at 9th for IS). It does add a little more MAD for psions, though.