You surround yourself with a Veil of Positive Energy, making it harder for Undead creatures to harm you. When under the effect of this spell, you gain a +2 sacred bonus to AC and a+2 sacred bonus on saves. Both of these bonuses apply only against attacks or effects created by Undead creatures. You can dismiss this spell before its normal Duration as a swift Action on your turn to deal a number of points of positive energy Damage equal to your level to all Undead creatures within 5 feet of you.