A lot of us already know how to do this. I don't want any threads about peoples game "crashing" due to this. (Heed my warning)
I believe he only changed the skill animation. Which means he didn't learn a new skill and it didn't do the damage of the new skill. It would be like using glaring slash and it would show the animation of multiple sword slashes but yet only do the damage and effect of glaring.
I think the actual skills are server-side. If they're not and you actually did change the skills to learn a new one, then you can get banned. (In fact, if anybody reports you i believe you'll get IP banned.)
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