The meaning of king and bronze

Kings and bronzes were originally fragments of the game the glory of the king. With the development of Internet, it gradually extends to all walks of life. A king can refer to a person who is very powerful, and bronze can refer to a person who is not very capable. For example, I didn't have a good impression of a person at first. At this stage, he can be called bronze, but later, his performance is surprising and pleasant, and he can be called king. For example, there is a very popular saying on the Internet. I thought it was bronze, but I didn't expect it to be king. In other words, I thought this man was a rookie, but after some performance, I didn't expect this man to be an old hand.