The Silver Crystal

Origin
The Silver Crystal, also known as the Silver Moon Crystal and the Legendary Silver Crystal, is a powerful object in the Sailor Moon universe. It has great and immeasurable power, with that power being used by the Moon Kingdom - and later Sailor Moon - for good. Among the properties shown, it has been shown to revive the dead and rejuvenate the sick, create powerful shields capable of resisting incredibly powerful attacks, and even healing the Earth of an unknown ecological disaster.

However, the Silver Crystal was also sought after by those who wished to use its powers for evil. According to the manga, the Crystal, if used incorrectly, had enough power to destroy entire star systems. However, the true power of the Crystal can only be unlocked by someone with a pure heart. Although it is often viewed as the most powerful object in the Sailor Moon universe, several other items appear to match its power.

Effects
The effects of this artifact are unclear at the present. However, it has been suspected that those who are pure of heart who use the crystal will find themselves to have incredible healing abilities. On the other hand, should someone with evil intentions obtain it, its unclear where the limit of its power lies (though it is highly doubtful that it could destroy much more than a city, if that).

Aden suspects that, because it is most commonly thought of as the most powerful object in the Sailor Moon universe, the downside will be more severe than other artifacts created from the Sailor Moon fandom. How severe it is may depend on how the user uses the artifact.

Current Status
This artifact is currently uncollected, and its current location is unknown. The Regents have requested to be notified as soon as any artifact-related activity that might be related to this pings in the Warehouse system, though it is unclear why at present.