
As a rule of thumb is something is considered to be exceptionally rare or unique to the point where only one particular item exists then it isn't wise to consider your character special enough to be worthy of being the sole wielder of that particular item.
It is, however, perfectly fine to deem it a replica or a different rare weapon. That's how most role-players back in WoW got around the awkward scenarios involving people using legendary weapons IC.
It is, however, perfectly fine to deem it a replica or a different rare weapon. That's how most role-players back in WoW got around the awkward scenarios involving people using legendary weapons IC.