The Githzerai race in the front of the XPH is listed as having the Psi-like ability
concussion, but this power doesn't exist in the XPH, and it was never touched on in errata. I'm assuming it is supposed to be
concussion blast, but can't find that for sure anywhere. Can anyone confirm, or point me toward any kind of official answer?
Edit: I see that in 3.0 the equivalent power to Concussion Blast was merely called Concussion. It was the same level, and dealt a flat 3d6 damage (as there was no augmentation at the time). However, 3.0 Githzerai did NOT have the power as a psi-like ability; instead they had Far Punch, a 0-level power that dealt a single point of damage. Comparatively, the "non-psionic" Gith in the MotP and the 3.5 MM1 both gain Shatter instead, which can't be used against (most) creatures...Psionic monsters have rules about Psi-like abilities and auto-augmentation:
All creatures with psi-like abilities are assigned a manifester level, which indicates how difficult it is to dispel their psi-like effects and determines all level-dependent variables (such as range or duration) the abilities might have. When a creature uses a psi-like ability, the power is manifested as if the creature had spent a number of power points equal to its manifester level, which may augment the power to improve its damage or save DC. However, the creature does not actually spend power points for its psi-like abilities, even if it has a power point reserve due to racial abilities, class levels, or some other psionic ability.
This rule would apply to Githzerai and their racial PSA's right? And since their ML for their PSA's is 1/2 their character level (minimum 1), then Concussion Blast would eventually start dealing more damage (2d6 at 6th level, 3d6 at 10th level, etc)?