Your rage is particularly damaging to lawful creatures.
Prerequisites: Rage 5/day, chaotic alignment.
Benefit: Any weapon the character wields while in a rage is treated as an anarchic weapon (it is chaos-aligned and deals an extra 2d6 points of damage against creatures of lawful alignment). This ability does not stack with similar abilities.
Source: Standard Reference Document under Open Game License v1.0a, which updated this feat originally published in the Epic Level Handbook, page 51.