Wondrous Item, Legendary, Weapon (Longword), Requires Attunement
This weapon counts as a +3 magical weapon, granting a bonus of +3 to all attack and damage rolls made with this weapon.
While attuned to this weapon, the wielder's Charisma score is 21. It has no effect if your Charisma score is already 21 or higher.
Additionally, while attuned, this weapon grants the attuned user resistance to cold and fire damage and a bonus 1d8 cold and 1d8 fire damage to all hits made with this weapon.