Spell Focus (Good)
( Book of Exalted Deeds, p. 46)[General]
Your spells with the good descriptor are more potent than normal due to your relationship with the powers of good.
Prerequisite
Any good alignment,
Benefit
Add +2 to the Difficulty Class for all saving throws against your spells with the good descriptor.
Special
The +2 increase also applies to the Difficulty Class for a possessing fiend to Hide from your good spells such as detect evil or magic circle against evil (as detailed in the Book of Vile Darkness).