Board Thread:Questions and Answers/@comment-10797017-20130627100621/@comment-5551986-20130629085842

Sternritter M wrote: 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. He was in maggot's nest for a reason. He seems pretty genocidal, wouldn't be suprised if he made some sort of "doomsday/pandemicy type weapon" out of his bankai. But remember, they were wearing gas masks.