To decrypt the value. So you can decrypt it anywhere, like some where the games has already separated entities.
Why do you keep repeating this, like every 3 posts it's "I can't separate me from enemies"; I completely get that you "can't separate yourself from enemies", so why do you keep repeating this. Do you really think I'm having that hard of a time understanding that (and if you do, why are you still talking to me, if I can't understand that how would I ever understand this).
But yet, I tell you to "find out what edx is" and nothing; you just seem to keep ignoring what I'm telling you to try and you just keep repeating the same stuff over and over. So at this point I don't think I can help you, because you just ignore me and repeat the same questions. Thus it's literally insane to keep doing this, and expect a different result.
The fact that you say this, tells me you are. And the fact that you don't wish to acknowledge this, says you like to skip the important steps because you "know it" already, but then waste time and ask basic questions like "how to xor edx" (something that can be answered with the most basic of research).