Though you've always been quite skillfully ambidextrous, you're unusually uncoordinated with anything that requires one-handed proficiency. But that's okay, two hands are always better than one.
Requirements: 1st level background feat
Required for: None
Specifics: Character gains +5 bonus to Attack Bonus when using two-handed weapons, but suffers a -10 penalty when unarmed or using one-handed, light, and throwing weapons.