User blog comment:Noyas/Aizen's shikai/@comment-1677140-20091224201346

You might be right about his shikai ability, but in the case where Hitsugaya attacked him, Toshiro didn't seem to see anything, he just got slashed all to hell. As far as Sosuke having a bankai, he indeed does have one, Kenpachi is the only captain in the history of soul society to not have one.