You have a +3 bonus to attack and damage rolls made with this magic weapon. all spells recharge after a long sleep 

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: Speed (Flying), Damage: Lightning, Resistance: Bludgeoning, Piercing, and Slashing from Nonmagical Attacks, Damage, Combat, Range