3e SRD:Trigger Power
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Trigger Power [Psionic]
Prerequisite: Inner Strength, Talented, reserve power points (see below).
Benefit: Choose any 0-, 1st-, 2nd-, or 3rd-level power the character knows. From now on the character can attempt to trigger that power without paying its cost. To trigger a power, the character must first satisfy the requirement of a power point reserve equal to or greater than what it would normally cost to manifest the power. Then, make an ability check appropriate for the powers discipline. If the character meets or exceed the ability check DC (see below), the power is manifested normally with no power point cost. If the character fails the check, he or she is forced to pay its cost, but the power is still manifested normally. A character cant use Trigger Power in conjunction with psionic attack or defense modes.
DCs for the ability check are determined by level: 0-level, 11; 1st level, 13; 2nd level, 15; and 3rd level, 17.A character cannot take 10 when using Trigger Power.
Special: A character can take this feat multiple times, each time using it for a new triggered power.