You can sacrifice unused magical power to have an epiphany and better perform a task.
Prerequisite(s): 3rd-level Mystic Theurge
Benefit: You are able to sacrifice uncast spells or spell slots (for spontaneous casters) in order to gain a bonus to a skill check that you are making. Sacrificing the spells is part of the action of making the skill check and you must choose to sacrifice them before you roll the check. You can sacrifice any number of spells, and you gain a bonus to your skill check equal to the total level of the spells sacrificed, to a maximum of +1 per level of mystic theurge you possess. If you sacrifice spells totaling more than this amount, the extra benefit is lost.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.