Rystil Arden said:
I know very well what a Shaper can do, but look above. The comparison was asked for a Psychokineticist.
Before a year ago or so, I didn't know what a psion could do. I thought: "hey, they can't be that bad, right? they're on their second version (3.5e, expanded), and I'm sure they've taken care of the balance issues."
Then a fellow player started playing a Psion, starting at level 7 or so.
Psions can make fine blasters, but they do even better with their self-buffs, constructs, and force/ectoplasmic goo spells. Oh, and those "Crystal" spells. Moreover, they can take a wide range of specialized powers (with feats) and boost them (with extra power points). The other spell-casting classes do not have this versitility. (A Sor can't take Paladin spells, for example.)
Still, my Clr 14 gives it a shot, at least, as does our Wiz 14 and Sor 13/Clr1. And as a DM, I work on making it challenging for the psion.
The common phrase you hear around the table, right after the psion has either avoided certain death or defeated all of our opponents, is "...and the psion class isn't over-powered at all!"
Fortunately, the player of the Psion is a real great guy to game with!