Night Hag

Periapt

The XP/GP value of the periapt is 2,250 XP / 16,250 GP.1) Extrapolated from the value of periapt of health plus one-half the value of a ring of protection +2.

A “usage” for decay purposes is any time saving throw is made or disease is cured, regardless of if the +2 was material to the save passing or not.