Duergar Invisibility
(Complete Psionic, page 49, DnD 3.5)
[Psionic, Racial]
You can use your invisibility psi-like ability more often.
Prerequisite
Duergar, invisibility psi-like ability
Benefit
You can use the invisibility psi-like ability granted by your duergar heritage a total of three times per day.
Special
You can gain this feat multiple rimes. Each time you take the feat, you gain two additional daily uses of your invisibility ability.
Normal
A duergar's invisibility psi-like ability can only be used once per day.