Potion (Vapor) very rare
This small glass sphere looks to be empty. However when the sphere is thrown, dropped, or somehow broken, an invisible mist juts out of the sphere creating an invisible cloud that covers a 20-foot radius. Creatures and all of their equipment within the vapor cloud all become invisible to one another, as well as to anyone outside of the cloud, regardless of the actions they perform inside the cloud. All creatures become immediately visible if they leave the cloud’s area or if the cloud is dispersed. The vapor lasts for 1 minute unless it is magically dispelled or dispersed by a strong wind.