Ok now I thought about this for a while,
There is several ways this could be done:
1) Pretty much the easiest way this could be done is through video/photo manipulation (Editing photos or movies with a program) since the skills bar never moves it fortunatly makes it easier to edit the movie.
2) The next would be simple old Artmoney (a program which changes hexadecimal variables), unfortunatly this makes things look nice but is only client side (Client side is essential the players side, the client connects to the server. If it was truely to edit the skill, it would be considered to be server side.) A change on client side does not effect the packets and therefore does not essentially doesn't change anything.
3) The third is probably the hardest and involves packet injections, ( Packet injections are information sent between you and the game that the client has edited to get the desired variable). He is right when the connection is established with the worlds server, a "key" is transmitted between you and the server. This key is like a key to a puzzle, you can't figure out the puzzle without the key (A good example of a key exchange commonly used is when your phone connects to another phone over bluetooth).
Now about the IP baning, i hope arn't just gonna hope to change your IP from your server as that wouldn't work. They would simple ban the IP of whatever server you are behind. But if your ISP doesn't use static IP's then you should be laughing XD. As long as they don't ask your IP for the logs.
(P.s sorry for digging this thread from the grave)
(P.P.s OWS I would love to discuss your method with you sometime if your interested)
Credits:
Me worked in IT professionally for the past 4 years and
