Awakened Storm Boomerang of Dragonslaying

This boomerang is a ranged weapon carved from griffon bone, and etched with the symbol of elemental air. One of the 3 blades is a Red Dragon fang. When thrown, it has a range of 60/120 feet, and any creature that is proficient with the javelin is also proficient with this weapon. On a hit, the boomerang deals 1d4 bludgeoning damage and 3d4 thunder damage, and the target must succeed on a DC 10 Constitution saving throw or be stunned until the end of its next turn. On a miss, the boomerang returns to the thrower’s hand.

When you hit a dragon with this weapon, the dragon takes an extra 3d6 damage. For the purpose of this weapon, "dragon" refers to any creature with the dragon type, including dragon turtles and wyverns.

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: Force, Damage: Thunder, Damage, Combat, Range