You can increase the power of your spells, causing them to deal more damage.
Benefit: All variable, numeric effects of an empowered spell are increased by half including bonuses to those dice rolls.
Saving throws and opposed rolls are not affected, nor are spells without random variables.
Level Increase: +2 (an empowered spell uses up a spell slot two levels higher than the spell’s actual level.)
Pathfinder RPG Core Rulebook. Copyright 2009, Paizo Publishing, LLC; Author: Jason Bulmahn, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.