Spear of Backbiting
Simple weapon, melee weapon
1d6 piercing - thrown (50/90 ft.), versatile (1d8)
You gain a +2 bonus to attack and damage rolls made with this magic weapon. When you throw it, its normal and long ranges both increase by 30 feet, and it deals one extra die of damage on a hit. After you throw it and it hits or misses, it flies back to your hand immediately.
Whenever you roll a 1 on an attack roll using this weapon, the weapon bends or flies to hit you in the back. Make a new attack roll with advantage against your own AC. If the result is a hit, you take damage as if you had attacked yourself with the spear.
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.
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.
You gain a +2 bonus to attack and damage rolls made with this magic weapon. When you throw it, its normal and long ranges both increase by 30 feet, and it deals one extra die of damage on a hit. After you throw it and it hits or misses, it flies back to your hand immediately.
Whenever you roll a 1 on an attack roll using this weapon, the weapon bends or flies to hit you in the back. Make a new attack roll with advantage against your own AC. If the result is a hit, you take damage as if you had attacked yourself with the spear.
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.
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.
Source: TftYP, p229
https://5e.tools/items.html#spear%20of%20backbiting_tftyp
https://5e.tools/items.html#spear%20of%20backbiting_tftyp
Item type
Weapon, Melee
Rarity
Weapon (spear), very rare (requires attunement)
Weight
3 lb.
