Steam Harpoon

A curious mesh of magic and steam-powered mechanism, this spear's barbed head can be launched from its shaft and quickly retrieved using the attached chain. You gain a +1 bonus to attack and damage rolls made with this magic weapon. Once on each of your turns when you attack with the spear, you can choose to make a special ranged attack with it, firing the spear head toward a target within 20 feet of you. This ranged attack uses your Dexterity modifier for its attack and damage rolls. On a hit, the target must succeed on a DC 15 Strength saving throw or be pulled up to 15 feet toward you. A Huge or larger target automatically succeeds on the saving throw. Hit or miss, the spear's head then reels back and reattaches to the top of the weapon immediately after the attack.

Thrown: If a weapon has the Thrown property, you can throw the weapon to make a ranged attack. If the weapon is a melee weapon, you use the same ability modifier for that attack roll and damage roll that you would use for a melee attack with the weapon. For example, if you throw a handaxe, you use your Strength, but if you throw a dagger, you can use either your Strength or your Dexterity, since the dagger has the Finesse property.

Range: A weapon that can be used to make a ranged attack has a range shown in parentheses after the ammunition or thrown property. The range lists two numbers. The first is the weapon's normal range in feet, and the second indicates the weapon's maximum range. When attacking a target beyond normal range, you have disadvantage on the attack roll. You can't attack a target beyond the weapon's long range.

Versatile: This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Proficiency: simple, spear Source: The Griffon's Saddlebag: Book Two p. 172 (Third Party)