You have a +3 bonus to attack and damage rolls made with this weapon. 

While wearing these gauntlets, you may take a free action to deploy or retract the blades at will.

You may also expend a charge to make a thrown weapon attack to shoot the blades dealing 1d10 piercing damage on hit. You must retrieve the blades and re attach them using an action before they are able to be used as weapons again.

Wristblades, also known as Gauntlet Knives, are the most basic of Yautja weapons and arguably the species' signature armament. The blades take the form of retractable, serrated blades between six and eighteen inches in length and two to eight inches wide that extend over the back of the hand from a gauntlet worn on the Predator's wrist. Generally, Yautja wear a single gauntlet on one wrist fitted with a pair of parallel blades, but there are a number of stylistic variations to this basic arrangement.

Despite their relative simplicity, Wristblades are the weapon of choice for most Predators. The deadly blades are sharp enough to cut through bone and are intended for use against unarmored combatants or those who have been disarmed. As a last resort, they can sometimes be fired as a projectile from their gauntlet.

The wristblades are among one of the first weapons a Yautja youth obtains.

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Weapon Property: Versatile, Weapon Property: Thrown, Make an attack against a target within 60 feet on hit the blades deal 1d8 piercing damage., Damage, Combat, Versatile, Sap