Collar of Umbral Metamorphosis

This spiked collar, when placed on an animal, makes them a creature of the dark

Property (Attuned):  You must be an animal to become attuned to this collar.

As an action (3/day), you gain +4 hide, +3 move silently, +5 ft. move speed, and dark vision 60 ft for up to 10 minutes.