Battle Subway no restrictions Action Replay code?

Hey everyone! I know it's been a long time since black came out. I have seen lots of people asking for this code. Yet everywhere I look, the topic was dropped. What I want is a code that lets you take legendary pokemon into the battle subway. I ask, because there is little to nothing for a guy itching to battle with legendary pokemon to do aside from that. Is there a reason this code can't be made? Or was the cry just not being heard? Either way, I would LOVE for someone to make a code for that. I don't care how long it is, I can just cut and paste. If it can't be made, please shed some light on why. That would be greatly appreciated. I don't know much about hacking, but I know a little about computers, so I'l try and keep up. We can get into a discussion as to the morality of cheating, I'm prepared to do that, as long as it doesn't get too heated. I just want an answer.