Special: This class uses what I'm calling XYZ templates. The idea is simple: By default, you advance through this class from A to B to C to D. But if you get Special Training (in this case, to master your psionic powers) you can instead choose to advance to the X template, instead of whichever was next in ABCD order. If you do so, you now advance X to Y to Z going forward. You are still limited to four total templates, but you could be a Psion ABCX, ABXY or AXYZ instead of being a Psion ABCD.
