Ellen Mira Mathers

Reportedly she is the world's strongest Wizard who works for Sir Isaac Ray Peram Westcott personally and is often mistaken for being his assistant. She has previously worked for the AST by request of Sir Isaac Ray Peram Westcott. She has vowed to never lose to any opponent, even agreeing that she may go so far as to commit the atrocity of destroying the world in the process. (Source: Wikipedia)