Mogdred is always an interesting subject, given his role in tDoM.
Was re-reading his entry in tHotW (page 107), when my eye was caught by this:
Sure it can be just a trusty, fell sword...He was clad in Orc-mail from head to toe, and given an ancient blade forged by those renegades called the Black Númenóreans.

But if it was a legendary weapon?

Someone is willing to try and stat it?
Just as idle musing...