Board Thread:Theories and Speculation/@comment-30355627-20170210181343/@comment-734582-20170211080833

Lorenzo.r.1st wrote: yup. obito had to use his own chakra (which already had sp chakra added to it), sakura's and naruto's, just to connect his own portal with all of hers. imagine sasuke by himself going back and fourth. (I know its probably easier for him than obito but still..) Obito opened two or three portals nevertheless. So while portals cost a lot of chakra, it's not like it's impossible for Sasuke to do. Besides Sasuke already revealed that it's not easy for him to do.