You can modify a power to become more tenacious when its targets resist its effect.
Benefit: To use this feat, you must expend your psionic focus. Whenever a creature targeted by a persistent power or within its area succeeds on its saving throw against the power, it must make another saving throw against the effect. If a creature fails this second saving throw, it suffers the full effects of the power, as if it had failed its first saving throw. Using this feat increases the power point cost of the power by 2. The power’s total cost cannot exceed your manifester level. Powers that do not require a saving throw to resist or lessen the power’s effect cannot be used with this feat.