Board Thread:Theories and Speculation/@comment-28300173-20161004230450/@comment-1512913-20161012100920

The most OP character would be Kaguya with chakras and all powers of her sons Hagoromo&Hamura and Kinshiki&Momoshiki + also being able to use all of the unique/user specific Mangekyou Sharingan and Rinnegan techniques... on top of that, all the knowledge, skill/talent and experience of Orochimaru and Madara combined.