Possibly wrong name for belt?

The upgraded version of the Monk esoterics belt is called "Fabled Belt of Slaying"

Typically, "Slaying" items aren't class restricted, and the fact that the non-upgraded item is "Ardent Belt of Striking", leads me to believe that this wasn't intentionally named as a "Slaying" item.

Yep, that ain't right. We'll squeeze this into a hotfix if we can, but if not, we'll revise it come 3.1. Thanks for the heads up!