Hello, so Ask Mr Robot appears to be confused on the matter of “Khor, Hammer of the Corrupted” & “Khor, Hammer of the Guardian” One is a Item ID 160679: “Khor, Hammer of the Corrupted” is a lvl 355 Weapon worth using while the other Item ID 163119 “Khor, Hammer of the Guardian” is a lvl 125 Transmog item.
My best in bags seems to think that Khor, Hammer of the guardian is a 355 item …
Note that there are “Khor, Hammer of the Guardian” items out there that are item level 355. I have one myself. It dropped as 355, was hotfixed to 125 and then hotfixed back to 355. You can read about it here: World of Warcraft Forums