Board Thread:Questions and Answers/@comment-10797017-20130627100621/@comment-11051098-20130628201506

He could develop a poison several times stronger than any he had before. And as the scientist he is, he could find a way to modify his Bankai so that it couldn't be stolen, and use it to spread the poison and (as you said) kill the entire Soldat force.

I bet that's something he could do.