Purple dragon ring

A purple dragon ring is a brass ring inscribed with the purple dragon symbol of the Obarskyr royal family, and they are usually worn by the Purple Dragon Knights to protect the royal family from harm. It can cast light once every six seconds at a range of up to 40' (12m), and each effect lasts ten minutes. It can also detect poision when the wearer touches a substance, making it glow golden-green if poison is present. Over 4000 of these rings have been made, and they are worth around 2000 gold pieces each. If this ring is worn on the same hand as a commander's ring, they are treated as one ring.