Dwarven Thrower

Weapon (warhammer), major, very rare (requires attunement by a dwarf)

• Damage:
  • One-handed: 1d8 bludgeoning
  • Two-handed: 1d10 bludgeoning
• Range: 20/60
• Properties: Thrown, Versatile
• Weight: 2.0 lbs.

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 20 feet and a long range of 60 feet. When you hit with a ranged attack using this weapon, it deals an extra 1d8 damage or, if the target is a giant, 2d8 damage. Immediately after the attack, the weapon flies back to your hand.

Source: Dungeon Master’s Guide p. 167. Available in the SRD