- Rarity
- varies
- Attunement
- Required
A Weapon Charm is a small ornament fixed on a loop of string or chain. You can take a Magic action to attach the charm to a weapon, usually on the weapon's pommel, or remove it from one. Attaching a charm causes the weapon to become a magic weapon that requires attunement. If the weapon is already magical, you must attune to it again to gain the charm's magical benefits, which are listed in the charm's description. A weapon can only have one attached charm at a time.
This adamantine charm resembles a miniature Longsword. While attached to a weapon, you have a bonus to attack and damage rolls made with this magic weapon. The bonus is determined by the battery's rarity. If the weapon already gains such a bonus, like a +2 Longsword, you choose which bonus to use; you can't use more than one.