Board Thread:Versus Debates/@comment-30426414-20161228222316/@comment-25122992-20161229123344

Well, technically, the only things Sasuke got from absorbing Oro were some of his snake techniques and healing power. He didn't receive Oro's chakra reserves, in fact, it was even a restriction to his own ones, since Sasuke always had to use some amount of chakra to suppress Oro in his body. Eight Branches Technique isn't even Sasuke's technique at all, he just lost control over Oro, which allowed the latter to emerge from his body in this form. So it wasn't already Sasuke fighting, it was Oro himself. Regarding poison resistance, Sasuke got it even before he absorbed it, the same way as Anko, another student of Oro, who surely didn't try to absorb him. Therefore, this resistance stays with Sasuke even in the present days.