Aquranto's boomerang of combustion

the boomerang has a throwing distance of 70 ft (plus any strength modifier) upon contact of a solid surface the boomerang explodes and any creatures within 35ft of the explosion must take 1d10 + 3 explosion damage (plus 3 is for fire damage)  after this the boomerang magically repears In the users hand

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: Range