Trade Good

Legendary Requires Attunement

A rune of ominous complexity wreathed in shadows.
Passive Effect. While marked on armor or any item, the attuned wearer can’t die unless the rune is removed from the possession. They are still incapacitated and unconcious when reduced to 0 hit points, but reaching 3 death saving throws has no effect while the rune is being worn or carried on their person. While attuned to this rune, undead of CR 5 or lower treat you as another undead, and only attack you if otherwise commanded to by a controlling entity or attacked by you.
Active Effect. While attuned to an item with this rune, you can use item to cast power word kill without expending spell points. Once this rune’s power is used, you can’t use it again until the next dawn.