Bolt of Twilight

Full Item Description
The Bolt of Twilight is a rare bolt crafted from the deepest darkness in the most vile and and unhallowed of places with a single purpose - not the injury or death of those struck, bur rather the insidious corruption of their very spirit, the decay of their ethics and morals to turn them into depraved, villainous mockeries of themselves, and upon their deaths drawing their souls away for foul purposes.
In appearance, the Bolt of Twilight is an ebon-black shaft of apparent metal, fletched with what appear to be raven feathers, although the rainbow sheen of oils in such feathers seems oddly dark and foul, unsettling to the sight. The bolt is tipped with a razor-thin blade, crafted of a metal so black that it reflects absolutely no light. When fired, it makes a faint, sibilant hissing sound, but is otherwise noiseless.
History
Originally crafted by a priesthood dedicated to a since-vanished god of decay and vengeance, the Bolt of Twilight has appeared several times over the course of history; while the god has vanished, the priesthood remains, scheming to restore their master to glory. Despite the efforts of those who oppose the rebirth of their terrible god of vengeance, every so often a priest crops up, bearing the bolt in an apparent attempt at assassinating a known champion of Good and Virtue. Invariably, the 'assassin' is caught, and the bolt's terrible magic activated when the champion has the 'assassin' executed, bringing forth the desire for vengeance, a lust for blood, and a hateful intolerance of any who differ from the victim, eventually leading them to fall from grace and arise as a champion of the bloody ideals of the vanished god - sowing destruction, decay, and bloody vengeance against any slight, real or imagined.

The Dark Templars of Nurmel were created by the first person struck by the bolt, rising to dominance as an order of dark knights dedicated to the suffering of others for three centuries before finally falling in the Midnight War. The second struck was the Highlord of the Holy City of Shemel, who proceeded to create the Inquisition, and causing the Heresy Wars as a result. The third and fourth were struck in sequence by a sly lizardman whose death sparked the War of the Brothers, when the victims tore apart their homeland in a bloody feud that turned into a century-long war. The most recent use was three centuries ago, when the Bolt of Twilight was used to strike the Sun Dragon; to this day, the wyrm continues the rampage in the mountains of the western mountains, laying waste to any attempts at settling by any creatures. The bolt is presumed to be wedged in the wyrm's hoard, but none have survived to reach the hoard, much less escape with any treasures of any kind.
Magic/Cursed Properties
The Bolt of Twilight has a one primary property; if used to strike a living creature, and that creature later causes the death of the bolt's wielder, the bolt's magic corrupts their spirit, perverting and corrupting their morals and ethics until they fall into a depraved mental state where they exemplify the virtues of death, decay, and vengeance.

The bolt has a secondary effect as well - those corrupted by the bolt have their spiritual essence siphoned away upon their death, being drawn away to fuel the god's eventual rebirth. This fact is known only among the priesthood, as none have ever felt a need to call forth such depraved souls from the lands of the dead, and as such have no clue that they never reach the spirit world.