Thought it was a king, but it turned out to be bronze.
1, "I thought you were the king, but you turned out to be bronze": It means "I thought you were great at first, but I didn't expect you to be a rookie". To overestimate a person is to tease a person.
2. "I thought you were bronze, but you turned out to be king": It means "I thought you were a good cook, but I didn't expect you to be great. Really unexpected. " At first, I underestimated a person and expressed surprise.