Divine powers smile upon you each time you grievously wound a favored enemy.
Benefit: When you confirm a critical hit against a favored enemy, you may extend the duration of any divine spell affecting you by 1 round. The benefits from multiple critical hits stack. Divine spells with an instantaneous duration can’t be extended in this manner.
Pathfinder Roleplaying Game: Ultimate Campaign. © 2013, Paizo Publishing, LLC; Authors: Jesse Benner, Benjamin Bruck, Jason Bulmahn, Ryan Costello, Adam Daigle, Matt Goetz, Tim Hitchcock, James Jacobs, Ryan Macklin, Colin McComb, Jason Nelson, Richard Pett, Stephen Radney-MacFarland, Patrick Renie, Sean K Reynolds, F. Wesley Schneider, James L. Sutter, Russ Taylor, and Stephen Townshend.