User blog comment:Kurare/Yoruichi Shihōin's Zanpakutō theory/@comment-25252005-20140821110453

I have to disagree on this one. We all know that if such an ability exist then shouldn't Yoruichi-sama have used this in her battle against Aizen-taichou? I think her transformation ability is one of those techniques from Onmitsukidō that would make more sense in my opinion.