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Your boundless rage grants your blows extra strength, though at the expense of accuracy.
Prerequisites: Power Attack; rage or raging song class feature.
Benefit: When you use Power Attack while raging or while using raging song, you take an additional –1 penalty on melee attack rolls and combat maneuver checks, and you gain an additional +2 bonus on melee damage rolls. Modify this damage bonus appropriately based on the type of weapon you are using, as normal for Power Attack.