Associated Domain: Strength.
Ferocious Strike (Su): Whenever you make a melee attack, you can designate that attack as a ferocious strike. If the attack hits, it deals additional damage equal to 1/2 your cleric level (minimum +1). You can use this ability a number of times per day equal to 3 + your Wisdom modifier.
Advanced Player’s Guide. Copyright 2010, Paizo Publishing, LLC; Author: Jason Bulmahn.