Amulet of the Dragon Cannon
The Master's Necklace.
Once per day, as a swift action you can activate this amulet. The next flurry of blows you perform in the next minute has an extra attack at the same attack bonus as the rest of the attack. the last attack in that flurry of blows deals an additional 5 damage.
This amulet of a dragon was created for legendary martial artist, An Jun Pan . His specialization was fast, powerful strikes. never letting the enemy regain composure, and taking risks. An Jun Pan was known for a technique called the “Dragon Cannon” a series of high-speed strikes followed by one extra massive punch. This Amulet imparts the skill to use this technique on the wearer.