Tri-Boomerang Form

The Zhurong in its Tri-Boomerang form looks like any other magical Boomerang You gain a +3 bonus to attack and damage rolls made with this magic weapon,

Additionally, when you throw the weapon it returns to your hand immediately as you are still counted as holding and wielding the weapon, and if you have the ability to make multiple attacks you can make further attacks with that weapon, the Zhurong can also be used in melee

Light Form

the Zhurong in its LIght form is known as the Tri of Light as Free Action if the Tri-Boomerang hasn't been drawn, you can bring forth the Tri of Light in its true form as the magical seam within the metal folded and split part to revel, the light form, however, if you have already drawn Zhurong in its Tri-Boomerang form you can use a bonus action to release the light form and then bring forth the Tri of Light in its true form, any type of fiend, undead, extra-dimensional creatures or Evil being, that sees the light from the Tri-Boomerang as it is drawn must make a DC 14, Int or Wis saving throw on a failed roll the light shine so bright within their mind makes them have disadvantage on any melee/range or spell attacks again you, this effect lasts until the light is removed from their present, on a Succesful saving throw the light will only drive back any type of fiend, undead, extra-dimensional creatures or Evil being away 5ft from the wielder

The Tri of Light Effect

The Tri of Light will also dispel and prevent the spell Darkness from being used or cast upon the wielding of Tri of Light as the light from the Tri-Boomerang has the same effect as the daylight spell

The Tri of Light will not hurt a good being 

The Tri of Light Damage

With the Tri of Light being a magic weapon, you gain a +3 bonus to attack and damage rolls when attack target, if any of the targets are a type of fiend, undead, extra-dimensional creatures or Evil being, there will take an extra 2d10 radiant damage, however, if your target has another extra-dimensional form in another realm or plane it will also take extra 2d10 radiant damage + Wis mod damage, and if you attack another creature that is being controlled and forced to act against it will, the manipulator of the said creature must make DC 16 concentration saving thrown on failed the host is free and the manipulator takes extra 2d10 radiant damage + Wis mod damage, but on a Succesful saving throw the manipulator remain in control of the host but will have disadvantage on concentration saving thrown if strike again by the Tri of Light.

The boomerang is a ranged weapon, and any creature proficient with the javelin is also proficient with this weapon.

On a miss, a boomerang returns to the thrower's hand.

Notes: Bonus: Magic, Damage: Radiant, Melee Weapon Attack: Slashing, Weapon Property: Versatile, Weapon Property: Light, Good, Damage, Combat, Range