You can manifest powers to maximum effect.
You can maximize a power. All variable, numeric effects of a power modified by this feat are maximized. A maximized power deals maximum
damage, cures the maximum number of
hit points, affects the maximum number of targets, and so on, as appropriate.
Saving throws and opposed checks are not affected, nor are powers without random variables.
Augmented powers can be maximized; a maximized augmented power deals the maximum
damage (or cures the maximum
hit points, and so on) of the augmented power.
An empowered and maximized power gains the separate benefits of each feat: the maximum result plus one-half the normally rolled result.