Dual Weapon Mastery I

You are adept at fighting with two weapons and double weapons.

• Prerequisite: Dexterity 13, base attack bonus + 1.
• Source: Core

When you attack with two weapons or with both ends of a double weapon as a part of a full attack action, you take a -5 penalty (instead of a -10 penalty) on all attack rolls until the start of your next turn. You only gain this reduced penalty if you are wielding a weapon with which you are proficient.

Normal

If you use a full attack action to make more than one attack on your turn (see Full Attack), you take a -10 penalty on all attack rolls for the round.