At 6th level, the Frenzied Berserker can inspire a Frenzy in all his/her allies. This ability only affects the Berserker's allies. Inspire Frenzy grants a bonus identical to the Frenzied Berserker's Frenzy except that it lasts for 2 rounds (insead of 3 + Constitution Modifier rounds), applies Fatigue penalties for 2 rounds afterwards (instead of 5 rounds), and that the bonuses from Inspire Frenzy and Barbarian Rage doe not stack (penalties still accrue). The Frenzied Berserker can use this ability once per day at 6th level, twice per day at 8th level, and three times per day at 10th level.