Smite Evil

A paladin can call out to the powers of good to aid her in her struggle against evil. As a swift action, the paladin chooses one target within sight to smite. If this target is evil, the paladin adds her Charisma bonus (if any) to her attack rolls and adds her paladin level to all damage rolls made against the target of her smite, smite evil attacks automatically bypass any DR the creature might possess. In addition, while smite evil is in effect, the paladin gains a deflection bonus equal to her Charisma bonus (if any) to her AC against attacks made by the target of the smite. If the paladin targets a creature that is not evil, the smite is wasted with no effect. The smite evil lasts until the target dies or the paladin selects a new target.

Smite Evil - Kingmaker