Board Thread:Naruto Discussions/@comment-30381420-20161031234712/@comment-25122992-20161108173325

Actually, Madara didn't use his TSBs as the cores, he just created the same black cores that of Nagato, although he made quite a lot of them instead of only one. The TSBs cannot be created that way, especially since there's currently no evidence that TSBs can be created at all.