Nah.. If you don't online battle.. You can ignore all of it and you can even pass the game easily.. You might have some problem in Battle Frontier though..Okay, cool. I do absolutely ZERO online playing, so I was just hoping that IVs EVs and Natures wouldn't cripple me too much since I've been ignoring them. If they don't have much bearing on the 'inside' gameplay, then I'm good. Thanks.