Well,I did duel him a lot of times,and he is really good. Even the first time I dueled him he was good enough (though I sucked). The problem is,now when the community says he rules,he goes around,asks people for duel and telling them they're scared if they do not want to play,and he randomly insults people in servers saying "he's better than everyone in the server and because of that he can say whatever he wants about them".