Aura Alteration(Expanded Psionics Handbook, p. 78)
Telepathy [Material, Mind-Affecting]
Level: Psion 6, Wilder 6,
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One willing creature
Duration: 10 min./level or instantaneous; see text
You can use this power in one of two ways: to disguise the subject's aura (alignment) and level, or to remove a compulsion or charm effect from the subject.
Disguise: If you use this power to disguise the subject's alignment and level, the power has a duration of 10 minutes per level. You can change the subject's alignment by only one step. For instance, you could not make a chaotic evil creature appear lawful good, but you could make it appear chaotic neutral or neutral evil. You can adjust the subject's apparent level up or down by a number equal to one-half your own level (rounded down) or less.
Remove Compulsion: If you use this power to attempt to cleanse the subject's aura of a baleful or controlling effect, the duration is instantaneous. This power can remove the compulsion of a curse or a "geas/quest": effect. It can also negate any charm and compulsion powers of 6th level or lower, such as crisis of breath or death urge. When aura alteration is manifested for this purpose, the subject gains another saving throw to remove the compulsion afflicting it against the original save DC, but with a +2 bonus.
Augment: You can augment this power in one or both of the following ways.
1. For every additional power point you spend, the duration of the disguise aura increases by 10 minutes.
2. If you spend 2 additional power points, the subject's alignment shifts an additional step (chaotic evil to lawful evil, for instance); if you spend 4 additional power points, the subject's alignment changes to its
opposite (chaotic evil to lawful good, for instance).