I too have been doing some investigating of my own. I caught him hiding in the corner of the battle arena, and so I requested that he spar me. He pretended to be AFK, so I patiently waited. Then all of the sudden he was sparring, and became active. After he lost I asked him to spar me. I told him that I would be recording the event, and then he told me he was blocking me. I never heard from him again. I honestly don't mind losing, I just wish he would spar me at this point. If it were possible I would pump Thallen full of courage.