D&Dtools1

Benefit

Choose any 0-, 1st-, 2nd-, or 3rd-level power you know. From now on you can attempt to trigger that power without paying its cost. To trigger a power, you must first satisfy the requirement of a power point reserve equal to or greater than what it would normally cost you to manifest the power. Then, make an ability check appropriate for the power's discipline (for instance, you would make a Charisma check for charm person). If you meet or exceed the ability check DC (see below), the power is manifested normally with no power point cost. If you fail the check, you are forced to pay its cost, but the power is still manifested normally. You can't 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.

Special

You can take this feat multiple times, each time using it for a new triggered power.