You have integrated both the Roaring Falls and Shrouded Lake techniques of swordplay into a seamless union.
Benefit(s): When attacking a creature denied its Dexterity bonus to AC because of your successful feint, you increase the threat range of your dueling sword by 1 (typically to 18-20/x2), and gain a +2 bonus on attack rolls to confirm critical hits. After you make a dueling dodge or succeed at a dueling parry during a duel, you can make an attack of opportunity against the foe who attacked you if that foe is shaken, frightened, or panicked. To gain these benefits, you must be wielding only a dueling sword (not using a shield, an off-hand weapon, armor spikes, unarmed strikes, or natural weapons).
Note If using the optional Stamina Pool rules, the following trick may be used with this feat.
Combat Trick: By spending 4 stamina points, you gain the ability to attempt a dueling dodge or a dueling parry against attacks made by a shaken, frightened, or panicked opponent, even if you aren’t participating in a duel.
Pathfinder Roleplaying Game Adventurer’s Guide © 2017, Paizo Inc.; Authors: Benjamin Bruck, John Compton, Crystal Frasier, Tim Hitchcock, Jenny Jarzabski, Isabelle Lee, Joe Pasini, Jessica Price, David Schwartz, and Josh Vogt.