When did Elemental Master happen?

There is no event or program called "Elemental Master" that I can find information about. Could you please provide more context or details about what you're looking for? For example, are you referring to:

* A specific game or video game series?

* A fictional event in a book or movie?

* A real-life event or competition?

Once you provide more details, I can help you find the information you need.