Final Blade
A Large or smaller restrained or willing creature can be executed by a final blade.
Activate ◆ minute (Interact)
Effect You execute a creature restrained beneath the blade. The creature you execute takes 11d10 slashing damage and must succeed at a DC 45 fortitude save or be decapitated as though it suffered a critical hit with a natural 20 from a +3 major striking vorpal scythe . The soul of a creature executed with a final blade is trapped, and the creature can't be returned to life, not even by miracle or similar magic. A final blade can hold any number of souls in this way, and a sufficient number of captured souls forms a monster called a gray death.
Destruction A final blade can be destroyed via the rare ritual, blunt the final blade.
Traits
Items with this trait are artifacts. These magic items can't be crafted by normal means, and they can't be damaged by normal means. Artifacts are always rare or unique.
An effect with the death trait kills you immediately if it reduces you to 0 HP. Some death effects can bring you closer to death or slay you outright without reducing you to 0 HP.
This magic comes from the occult tradition, calling upon bizarre and ephemeral mysteries. Anything with this trait is magical. A creature with this trait is primarily constituted of or has a strong connection to occult magic.