A duelist focuses on feints and bluffs in battle to distract his opponent and take advantage of weaknesses.
Combat Focus I
At 3rd level, you gain Deceitful and Improved Feint as bonus feats, even if you don’t meet the prerequisites. You may use your Dexterity score in place of your Intelligence score for the purpose of meeting prerequisites, but this only applies to feats that have Improved Feint as a prerequisite.
You are considered to have an Intelligence score of 15 for the purposes of meeting the prerequisites for the Combat Expertise feat and feats that have Combat Expertise as a prerequisite.
Combat Focus II
When you use the Combat Expertise feat in battle at 5th level or higher, you do not apply the penalty to combat maneuver checks when attempting to disarm your enemy. The penalty still applies to all other attack rolls and combat maneuver checks as normal.
When using Combat Expertise or fighting defensively, you can use an immediate action to make an attack against any opponent that makes a melee attack against you. This attack is made at your highest base attack bonus. Make this attack after the resolving the opponent’s attack. This counts an attack of opportunity.
Combat Focus III
Starting at 9th level, you may attempt a feint in combat as a swift action rather than a move action.
In addition, if you use the Combat Focus II ability to make an attack against an opponent who attacks you, and that attack is successful, you may immediately make a disarm attempt against that opponent as a free action.
Combat Focus IV
At 13th level, when you make a successful disarm or feint attempt against an opponent, you can immediately make an attack against that opponent as a free action using your highest base attack bonus. (You cannot combine this extra attack with the free disarm attempt granted by Combat Focus III.)
Combat Focus V
Beginning at 17th level, when you make a successful feint attempt, the opponent becomes flat-footed against all attacks until the end of their next turn, including attacks made by your allies.