Kazuki is back, but now he has met his match. Even in his life draining super form I don’t think he would be able to stop Zaraki. Zaraki will be cutting him faster than Kazuki can hope to regenerate. Kazuki has a good amount of strength on his own so I’m sure he would be able to put up a good fight but I don’t see him winning this. Zaraki’s a beast in combat and Kazuki will quickly be reminded of that here. Zaraki wins.