You know how to battle your favored enemies with such efficacy that any weapon you wield against them becomes more deadly.
Prerequisites
Favored enemy ability, base attack bonus +9.
Benefit
When you take this feat, choose one of your favored enemy types. Against enemies of that type, the threat range of any weapon you wield is doubled. This effect does not stack with any other effect that expands a weapon’s threat range.
Special
You can take this feat multiple times. Its benefits don’t stack. Each time you take it, you choose a different favored enemy type.