Power Mastery (3.5e Feat)
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 Power Mastery [Psionic]
You are a master of what others call lesser powers.
Psionic Meditation, manifester level 6+
Choose a number of powers equal to your primary manifesting ability modifier you already know. Whenever you manifest one of these powers, after the cost is determined you pay 2 power point less than normal. The maximum level of a power you can choose is 1/4 of your manifester level, rounded down. you must always pay a minimum 1 power point to manifest a power
You can take this feat multiple times. Its effects do not stack. Whenever you take it, you choose a new number of powers to apply the benefit to as described above.