When no allies are nearby, you can safely unleash the full extent of your fury.
Benefit(s): While raging, when you make a full attack with a melee weapon, you can expend an extra round of rage and make one additional attack at your highest base attack bonus, taking a –2 penalty on all of your attacks and a –2 penalty to your AC until your next turn. You cannot use this ability if there are any allies within 5 feet of you or of any squares you threaten. This benefit does not stack with similar effects, such as haste.
Pathfinder Player Companion: Legacy of the First World © 2017, Paizo Inc.; Authors: Jake Alley, Judy Bauer, John Compton, Mikko Kallio, Jason Keeley, Joe Pasini, Mark Seifter, Kendra Leigh Speedling, Josh Vogt, and Linda Zayas-Palmer.