When Professor Glendower a asked about the chocolate frog trading cards, Jasmine had to think about it for a minute. Then she raised her hand to respond to the question."There are snippets of information about famous witches and wizards on the cards. People can learn facts better when they arent bombarded with information. The chocolate that's included makes the whole package more attractive and appealing to the customer." Come to think of it, there was probably a history reason for why trading cards and chocolate were paired .