Full Potential (3.5e Feat)
From D&D Wiki
Full Potential [General, Fighter]
You use the full potential of your body when attacking enemies so you can bring maximum accuracy and damage to the battlefield.
Prerequisite: BAB 16+ , Power Attack , Proficiency with melee weapons.
Benefit: When you get this feat you gain a modifier of your choice to your attack rolls and damage rolls with melee weapons. This feat works with one-handed weapons, two-handed weapons and when fighting with two weapons.