Originally posted by Epimetheus
How do you tell the difference between an NA artifact that can be made and one that can't? I mean I guess that's what the symbol in chosen of the arms is for but is it just up to the ST to say, no you can't create another mantle of brigid?
There's not any kind of beyond-N/A category of artifacts that you can't make. If the Storyteller doesn't want you to be able to make a thing, they can just say no.
You can't duplicate things like the Mantle of Brigid or the Eye of Autocthon any more than you could Spring Razor or Beloved Adorei.