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~_~ This is proving to be a bitchy process :( since I can't save in front of the guy I gott go through the entire building every reset >_> The good news is I know what to look for in stats, so resetting will be easier to determine upon seeing the stats :D
just do battle factory-- it'll give you 3 BP for the first round, then you can just lose (or beat the next round, your choice), and do it again; It gives more BP per round of 7 than the battle tower :)
you have a particular ball preference for croconaw? I'm about to reset for it; I have dive, net, nest, premier, master, great, ultra, poke and timer balls, so pick your preference :3