Jürgen Hubert said:
Whoops. I explicitly did not mention the yuan-ti, but I forgot not to mention the mind flayers.
How many "psionic races" leaves this us with?
As far as PC races from the XPH go, six (Dromites, Duergar, Elans, Half-Giants, Maenads, and Xephs). I would actually make the Scarlet Brothehood primarily Elans, and I'm sure Duergar will creep in somewhere. Can't see the others fitting in, but who knows.
Other monsters I associate with psionics include the Aboleth and Derro. The worm-like Puppeteer is a psionics staple, and with the Phrenic template any creature can be buffed to become frightingly effective.
The yuan-ti and mindflayers would be sorely missed, of course.
Phil's and Ari Marmell published the Iconic Bestiary with the express purpose of supplunting the closed races with OGC versions. We'll need to ask, but I think chances are high they'll bless us using their version instead. These include the Evil Eye (not-a-beholder), Ophiduan (not-a-yuan-ti), and the Phrenic Scourge (not-a-mindflayer).
My personal favorite, however, is the CR 15 Undermind from Monster Geographica: Underground, a massive blob that dominates and control minds of keen intelligence.
