The Ring of the Lord of the Cats is an artifact given by the Lord of the Cats to Amitlai at the moment he bites her and begets Agatha.
The ring protects its wearer several times: against the white dragon at Tovag Baragu and against the Lady of the Cats. Amitlai wears it while she takes her hybrid woman/feline form. It is an object of feline lineage and power; in planar terms it anchors its wearer’s connection to the Beastlands, the outer-planar domain of animals and nature spirits (War of the Beastlands).