I doubt they could do that for the BW2 champion, because you don't even have to go back and beat the E4 and Champion after the main storyline in BW1. Though it could check to see if the BW1 cart has that Game Clear team and make a battleable NPC with it (in your secret base maybe???)
[10:34pm] Glacier: I'M A DERP DERP POOPY HEAD
[10:34pm] smashlloyd20: ?
[10:34pm] EspyOwner: :|
[10:34pm] smashlloyd20: oh true
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