User blog comment:Xikhuang/completely unacceptable!/@comment-27996636-20161209000040/@comment-28010522-20161209042440

@Namekiankai Yea, you are right. Those power level numbers are to be taken with extreme caution!!! LMAO

But that's the only one I could refer to, 'coz I don't where to get the power level numbers printed on the official collectible cards, which, I am guessing, are available only in Japan (not the game, but the country).