Aldori Dueling Mastery (Combat)Source Inner Sea World Guide pg. 284 (Amazon), Pathfinder Campaign Setting pg. 67 (Amazon)
You have mastered the grueling fighting style perfected by the Aldori Swordlords.
Prerequisites: Exotic Weapon Proficiency (Aldori dueling sword), Quick Draw, Weapon Finesse, Weapon Focus (Aldori dueling sword).
Benefit: You gain a +2 bonus on Initiative checks as long as you start combat with an Aldori dueling sword in your hand. As long as you wield only a single Aldori dueling sword in one hand, you gain a +2 shield bonus to your AC—if you wield the sword in two hands, this bonus drops to a +1 shield bonus to AC. Although the dueling sword inf licts slashing damage, you treat it as if it were also a piercing weapon when determining the effects of weapons used by a duelist.Source Weapon Master's Handbook pg. 24 (Amazon)
You can spend up to 6 stamina points at the start of your turn to increase the shield bonus that you gain from the Aldori Dueling Mastery feat by 1 per 2 stamina points spent until the start of your next turn.