Source: Player's Guide to Faerûn
You're an expert at using weapons in a grapple.
Prerequisite: Bugbear (the Earthfast Mountains), chitine (Underdark [Yathchol]), goblin (the Earthfast Mountains), half-elf (Dambrath or the Dragon Coast), halfling (Channath Vale), hobgoblin (the Earthfast Mountains), human (Anauroch, Dambrath, the Lake of Steam, or the Sword Coast), orc (Thesk), or planetouched
Benefit: You can use a light weapon to attack your opponent in a grapple with no penalty on the attack roll. In addition, you need not win a grapple check to draw a light weapon while grappling, although you still must use a move action to do so. If your base attack bonus is +6 or higher, you can make a full attack with a light weapon while grappling, provided that you already have your weapon drawn.
Special: You may select this feat only as a 1st-level character. You may have only one regional feat.
Normal: A character in a grapple takes a -4 penalty on attack rolls when attacking the grappled opponent with a light weapon. A character in a grapple must win a grapple check in order to draw a weapon and cannot make a full attack in the round she does so.