Tyrfing, the Thrice-Cursed Sword of Tragedy

The blade of this weapon shines brilliantly, but there is a strange chill about it. You gain a +3 bonus to _attack and damage rolls_ made with this magic sword. Additionally, you can speak the blade’s command word as a bonus action to cause it to shed _bright light_ in a 20-foot radius and _dim light_ for an additional 20 feet. Repeating the command word or sheathing the blade extinguishes the light. Objects hit with this sword take the maximum damage the weapon’s damage dice can deal.

Tyrfing has 9 charges, which it does not regain while attuned to a creature. These charges are fully restored if a new creature attunes to it, but a previous bearer who attunes to the sword again only ever has the same pool of charges. When you use the sword to deal a critical hit against a creature that is not a construct or undead and has 100 or fewer hit points, it must make a DC 16 Constitution _saving throw_ . Each time a creature is killed in this manner the sword expends a charge.

**_Curse._** Prior to 3 charges being expended from the blade, it will cause some tragedy or misfortune to befall you and will not expend its third charge until it has. The exact details and timing of this evil are up to the Narrator, but good examples include: causing you to automatically fail a crucial ability check (particularly one that would lead to further disaster, such as failing to identify an ally in the dark and accidentally attacking them); causing an ally who is reduced to 0 hit points to be incapable of rolling successes on death saving throws, leading to their death unless they are healed or stabilized by another creature; or causing all your next critical hits during a given combat to miss instead.

Misfortune occurs again before 6 charges have been expended, and it will not expend the sixth until it has done so. Likewise, it must do so a third time before expending the final charge. If you break your attunement with Tyrfing with a pending misfortune, you remain _cursed_ until either the misfortune occurs or until you are targeted by a _remove curse_ spell cast using a 9th-level spell slot.