WayOfTheFourElements
Hero
Psi points were more about upping what the discipline did already.
Doesn't metamagic do that?
Distant "Power" extends the range of telekinesis.
Empower "Power" makes mind blasts deal even more damaging.
Extend "Power" increases the duration of mind-affecting powers (and similar)
Heighten "Power" makes mind-affecting powers more potent (more likely to affect the target)
Subtle "Power" make tricky tricky powers even more tricky.
Twinned "Power" allows you to mind blast/dominate more creatures at once
What else are you looking for?