Your shout heartens your allies and encourages them in the fight.
Prerequisites
Charisma 13, either Perform (act, oratory, or sing) 5 ranks or base attack bonus +5.
Benefit
You can let out a battle cry as a swift action a number of times per day equal to your Charisma bonus, minimum 1. Allies within 30 feet who can hear your battle cry gain a +1 morale bonus on attack rolls and a +4 morale bonus on saving throws against fear. This effect lasts for 1 minute.
While affected by your battle cry, an ally who fails a saving throw against a fear effect can choose to end the battle cry’s effect on themself to immediately reroll the failed save. They must take the result of the reroll, even if it is lower. Each ally can use this reroll only once per use of this feat.