Dusk Sword

Weapon (any sword), very rare (requires attunement by a fighter)

The weapon identifies as a +3 weapon. In actuality, you gain only +1 bonus to attack and damage rolls with this weapon.

Curse. You lose 10 hit points from your current maximum hit points at the end of every round you wield this weapon in battle. You do not realize the blade is responsible for the loss. You are unwilling to part with the weapon, keeping it near you always, and you have disadvantage on attacks made with any other weapon.