Typically, I think I have finally understood the mechanics moments after posting this thread.
It seems that the items don't actually change. When the Dark Facet of Luck is made, I can "use" it to apply the enchantment to my character, and it's active whenever I am wearing a LOTD or HSR.
Alternatively, I can trade the Dark Facet of Luck.
If this is wrong, please correct me. Otherwise, I'll leave this here in case other players in the future become confused like I was.
~A~
13-Aug-2023 11:31:49