User blog comment:Godisme/Dirty Boots Dangers/@comment-2220308-20110407182629

I dunno if Kubo meant Jackie's power to be like this, but if you think about it, her power is very useful in the hands of someone who is strong. I dont know if Jackie counts as strong, but if she grows stronger as her boots become more dirty, and as she says, this includes blood, then the more she beats up on her opponent, the stronger she will get, see? However, one has to realize that if you have this ability but can never fully utilize it because you cant beat up on your opponent in the first place, then you are kinda screwed. But still, if Ichigo ends up having Jackie's power, then every time he kicks future enemies, he will get stronger from it, and not more fatigued. Heck, (sorry this is so long) since he usually gets beaten up on by others (like against grimmjow or ulqi) his own blood could refresh him!