Katana of the Grey Ones

Description
This katana is clearly made by human hands in imitation of the bizarre growths and alien materials that cover the strange beings known as the Grey Ones.

A more interesting question lingers - katanas are a staple of far eastern land of Yamatai - how did a blade of this style end up on the Isle of Siptah?

Repair
Repairing  requires up to:
 * 23