You have sworn to use your arcane might to further the goals of Asmodeus.
Benefits: In addition to its normal use, you can call upon the power of the Devil’s Pact feat to increase the DC of an arcane spell by +2. You must declare that you are using this ability before the spell is cast and any saving throw is made. If the target of the spell is an outsider with the good subtype, the spell automatically bypasses any spell resistance the target might have.
In addition, you can use the Devil’s Pact one additional time per day.
Way of the Wicked Book Five — The Devil My Only Master. Copyright 2012, Fire Mountain Games LLC; Author: Gary McBride.