Centurion Spear (5e Equipment)
From D&D Wiki
You gain a +3 bonus to attack and damage rolls made with this magic weapon. It has the thrown property with a normal range of 50 feet and a long range of 150 feet. When you hit with an attack using this weapon, it deals an extra 1d8 piercing damage. Immediately after you make a ranged attack with this weapon, it reappears in your hand.