TheAn artifact resembling the Helm of Shadows was presumably created by the [[Stygian (Mirror-Universe)|Pony of Shadows of the corrupted universe]], aswho hehoped effectivelyto createdturn both{{FIM|Princess Luna}} into Nightmare Moon and {{FIM|Princess Celestia}} into [[Daybreaker]]. However,Luna inwould somelater sources,create her own Helm of Shadows upon becoming Nightmare Moon. wasAfter insteadbeing createdreturned byto anormal, darkLuna presencewould fromsecrete the {{FIM|Moon}}apparently orindestructible someartifact otherin alienhopes presence.that Whateverit would never fall into the case,wrong whenhooves. [[Princess LunaArgent]], fellwho tohad theturned to darkness,shebut adornedfailed to create her helmetown Helm of Shadows or undergo a transformation akin to Luna's, later learned of the Helm's existence and sought to claim it for herself.