Kusarigama are martial, bladed melee weapons consisting of a blade attached to a long rope that deal 1d4 slashing damage on a hit and have the Scourge, Special and Versatile properties.

Properties

Scourge
This weapon adds 5 feet to your reach when you attack with it, as well as when determining your reach for opportunity attacks with it. Like the Reach property, the Scourge property extends your effective attack radius, but through a length of flexible material rather than a long, stiff material.

Special: Counterweight
While wielding a kusarigama with two hands, you can use a bonus action to attack with its counterweight. This attack has a reach of 10 feet and deals 1d4 bludgeoning damage on a hit. You don’t add your ability modifier to the damage of this attack, unless that modifier is negative.

Versatile
This weapon can be used with one or two hands. This weapon deals 1d6 slashing damage on a hit if you are wielding it with both hands.

Superior Strike

Trip.
You perform a wide, sweeping attack that strikes at the footing of enemies around you. Each creature standing within 10 feet of you must succeed on a Dexterity saving throw or take bludgeoning damage equalling a number of d4s equal to your proficiency bonus and fall prone.