User blog comment:Xilinoc/Ch. 570 (I can't think of a witty title at 11 pm)/@comment-4026406-20140227225656

This was a fantastic chapter. I think her Bankai essentially extends her ability to become absolute zero to her external mist, and everything within that space hits that temperature. Maybe due to how fast it happens, the targets literally crumble away into what looks like snow? Because it hits her body as well, though, it makes it extremely dangerous.