This odd contraption consists of two metallic disks connected to an axle with a ball-bearing. Tied to the axle is a long string that stretches to five feet when unraveled. Tying the other end of the string to user's finger allows them to unravel this string using gravity. When this happens, the string spins on the ball-bearing, propelling the yo-yo forward. Afterwards, physics returns the string to its original position and returns the Yo-Yo to the user's hand.
Proficiency with Martial Weapons allows you to add your proficiency bonus to the attack roll for any attack you make with it.
Special. After attacking with the yo-yo, you must make a Sleight of Hand skill check (DC 10) to make the string return the Yo-Yo to you. On a failed skill check, you must use an action to wind up the string before throwing the Yo-Yo again.
Range, 5 feet (Melee Attack)
Does 1d8 bludgeoning damage
Proficiency with a Flail allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Sap. If you hit a creature with this weapon, that creature has Disadvantage on its next attack roll before the start of your next turn.
Notes: Sap