Level Up (A5E) Throwing Stance and Rebounding

[thuter]

The Throwing Stance maneuver from the Unending Wheel tradition states:

Choose a weapon when you learn this combat maneuver. While you are wielding the chosen weapon it has the rebounding property and thrown property (range 30/60 feet).

I cannot find any mention of a "rebounding" property in the weapons part of the equipment section, though there are two weapons that have a description that may fit. One is the Boomerang:

A boomerang designed to flush out or distract prey goes a shorter distance (range 50/150), but on a miss it returns to the location it was thrown from at the end of the turn.

...and the other is the Ring Blade:

In addition, when you throw this weapon, you may make the attack with disadvantage , and on a hit it returns to your hand.

Is the rebounding property like either of these two benefits, or something else entirely?

 

[thuter]

Ah, found it in the Customizing Armaments part of the Equipment section:

Rebounding (Thrown Weapons and Shields Only). When you make a ranged attack with this weapon or shield, you may make the attack with disadvantage . If you hit, the weapon returns to your hand. Piercing weapons cannot have this trait.