Thread:ShonenChicoBoy/@comment-25456115-20150126135756/@comment-1493741-20150126151131

Running on both assumptions here: Its a toxin. A weird toxin, but a toxin nonetheless. It quickly spreads through the body of a potential victim, and, working on assumption here, the second strike activates the toxin causing it to rapidly destroy the victim's body, leaving no traces behind. I'd guess that instead of eating the Reishi of the person, it instead introduces an element which causes them to rapidly break down. Perhaps by introducing Kishi into the structure of that person's body through their bloodstream, as Kishi and Reishi do not exist well together, the body of the victim reacts violently and destroys itself.

And then on the subject of her Bankai. While that may be the concept Hibrid, its never been stated that her Bankai actually kills anything in one shot. And in practice it's also never been successful at killing off anyone, both victims, Baraggan and BG-9 survived the attack.