B14d3r11 said:
1. "Burn, Engetsu" and http://mangastream.com/read/bleach/90306018/11
2. Yes I know this, I was adding that in to further support my first hypothesis cause if Ichigo is Isshin's son then if his father has a Bankai that shrouds him with reiatsu it would make more sense how ichigo is also capable, but also remember Ichigo's sword is technically not his own because the creator of the Asauchi, Ouetsu knows where every sword he ever made is but ichigos. Also you probably already know this but it is written that he IS NOT a Shinigami
1. It's not enough, you never saw his bankaï, so you haven't any proof, only mere speculations. And as I said in my previous post, some shinigamis have the power of the shikaï different of the power of the banKaï.
2. Ichigo is Juha Bach's son the manga proves it (chapter 514). So, Ichigo got his powers of shinigami from his mother, Masaki was a quincy, then she could use spiritual particles, maybe she took the Isshin's reatsu in some way. Ginjo did the same thing with his fullbring and he got the Ichigo's powers (Getsuga Tenshou and bankaï). Zangetsu only belongs to Ichigo and none else. Naiyama Oetsu said Ichigo isn't a real shinigami because he succeeded to create a true zanpakuto without to use a asauchi.