The Arrow of Time was created for a singular purpose: to kill a god. Not to kill one god in particular, but to kill any god who may be deemed a threat to The Pantheon. The arrow’s development began immediately after the end of The Divine War, as a countermeasure to prevent a second Divine War before it ever began. Though the Extra-Hellenistic deities outside of Tartarus number too few to pose a significant threat, and a breakout at Tartarus is impossible, The Moirai are nothing if not thorough. To put it in layman’s terms, the arrow works by piercing a deity’s natural protection against aging. Essentially, it renders a divine being into a being that is functionally similar to a mortal. It must be noted that the effects of The Arrow of Time are purely theoretical, as the arrow has never been fired on a divine test subject. That is not to say that its effectiveness is entirely speculation; it was the product of many decades of Research and Development. If nothing else, the fact that none are willing to serve as its target practice is a testament to its lethality.
The arrow itself is crafted from a femur of Chronos, tipped by an incisor of Cronos. (Note that these are two distinct entities – the former is the God of Time, while the latter is the father of Zeus.) Its tip is aflame with the fires of the nine (9) circles of Hell. The shaft is painted with each of the seven (7) colors the original Covenant’s Rainbow. The bone’s marrow has been replaced with a unique poison, a mixture that includes water from each of the five (5) rivers of Hades. For fletching, it has three (3) feathers, each plucked from a being of a foreign pantheon. One, the feather of a winged serpent, one, the feather of one who oversees the desert skies, and one, feather of a three-legged crow. All forged within the Heart of Chaos, the One (1) being to have shattered the symmetry of time. But an arrow made as described is only a vessel. The true power of The Arrow of Time is imbued by ritual. From the moment of its creation, the names of all gods of time are uttered over it, stretching into eternity in both directions. In the future direction, they are spoken in reverse; in the past direction, they are spoken forwards, converging on the moment of creation.
The Bureau of Death waives responsibility for any personal catastrophe that will befall any foolishly attempting to create their own Arrow of Time outside of The Bureau’s authorization.