Incredible Dexterity (3.5e Feat)
From D&D Wiki
Incredible Dexterity [General, Fighter]
Through feats of great skill and precision, your coordination and manual dexterity have grown to incredible heights.
Prerequisite: Defeat an enemy while they are denied their dexterity to their AC. Avoid an attack of opportunity from a creature 5 HD above you, Dexterity 18+
Benefit: +10 Dexterity
Normal: no bonus