You can channel incantations to greater effect.
Benefit: You can empower an incantation. All variable, numeric effects of an empowered incantation are increased by one-half. An empowered incantation deals half again as much damage as normal, cures half again as many hit points, affects half again as many targets, and so forth, as appropriate. Augmented incantations can also be empowered (multiply 1.5 times the damage total of the augmented incantation). Saving throws and opposed checks are not affected, nor are incantations without random variables.
Using this feat increases the channeling DC of the incantation by 2. The incantation’s DC cannot exceed your maximum DC.