Board Thread:General Discussion/@comment-33530084-20171031120106/@comment-27392440-20171102190057

1- he probably knew because he studied the forbidden archives after killing the central 46, like how he learned to make the ouken,2- I completely agree with you, 3- mastering kido doesn't mean he got stronger,kido is an art of the mind and knowledge so having over a year where he could do nothing but think he probably went over his kido theory and knowledge until he improved,4- again, I completely agree,5- I don't think so as the final form seemed like the highest transcendent state possible but he probably could have kept his permanently unlike Ichigo,6- he was likely captured and couldn't help more against Yhwach because most of the bindings that suppressed his spiritual powers were still there,ergo why he only had one eye showing and was covered in black, 7- see #6's answer, 8- I think he can only trick with kyoka suigetsu if he has knowledge of the senses you're using, so unless he knew about chakra vision and being able to see out of multiple eyes like pain did, probably not is my best guess