Gambler's Blade

A Gambler's Blade is a cursed magical sword. Bertrand Bell wields a Gambler's Rapier.

Description
Each day at dawn, the attuned wielder can choose a magical bonus of +1 to +3, giving the Gambler's Blade that bonus to its attack and damage rolls. The wielder takes a corresponding penalty, -1 to -3, to their death saving throws.

The sword is cursed, so that the wielder bound to it wants to remain bound to it and feels a compulsion to keep it with them. A Remove Curse spell or similar magic cast upon the wielder ends this curse.