how to change the skill "possess"

I think that's what it was, I just need help with translating the coding of the game and knowing what changes what. I'm sure some people on here are asking the same questions I am.

Well for anything that can't be made with an editor and outside events or data, you need to know the 65816 assembly language which require to know the hexadecimal system and therefore binary too. This is programming. You can't just hope for someone else to translate the code or find the solution for you every time you want to change something outside an editor.

There are many resource on the web for you to learn assembly. Plus, FF3us is the most documented SNES game. There are ROM maps, the event dump (for understanding events) and there are dissasemblies with comments to help you find the code you're looking for.

Learning that requires motivation, determination and patience but it worth it in the end since you can work almost by yourself after that and not always rely on others. I'm not telling you lack any of these qualities and this message shouldn't be taken too personally as it is good for anyone who wants to do semi-advanced or advanced hacking.