Komamura turns out to be somewhat stronger than I gave him credit for. Not only does he now have massive amounts of raw power, he literally cannot die for the duration of his human form. This immortality also extends to his bankai, which is also invulnerable despite being pure reiatsu. It’s a sort of sacrifice play – giving up his heart (and his life) in exchange for unlimited strength. You can’t kill what’s already dead. Komamura claims that he’s not throwing his life away, though it’s not clear what will happen to him once the effects wear off. For such an overpowered ability, there had better be downsides.
Right now he is able to tank all of Bambietta’s bombs with ease, and his very sinister-looking bankai lands a pretty big hit as well. Its effectiveness is unknown as she disappears into a ball of flame at the end of the chapter, but I stick by my previous assertion that she won’t be defeated so easily. I really disliked her long and confused rant and felt that it pretty poorly written dialogue, but then again, characters in shounen manga often pretend to be confused before revealing an even stronger power. It would be very unusual for Bleach if Bambietta died this soon, so I expect her to stay alive and kicking for a few more weeks at least. Bambietta doesn’t seem like the low-level filler villain used to rack up body counts, and after Komamura’s bad-ass show, she had better have something outrageous herself to reveal next week.