I currently have pokemon black and since my friend who has pokemon white moved away, i can't trade with him anymore. Because of this, I can't get certain pokemon that are from pokemon white.
My question is this. If I get a legit Thundurus PKM (only obtainable from white version), and I use pokesav to open it to transfer it to my black, how do you make it legit so that I actually got it legitly?
Like pokemon like Virizion, where you can obtain it in white and black, if you get a legit pkm file, you can just change the Secret id and OT ID to mine and boom, it will seem like you just caught it legit because the location where you get Virizion will be identical. As for pokemon like Thundurus, even if you get PKM file, it won't really look like legit since you cant get it from pokemon black. So how do you make it legit?