Board Thread:Theories and Speculation/@comment-3568954-20170106121957/@comment-734582-20170107094126

Actionmanrandell wrote: it would work the same way Chiyo's revival jutsu worked. But why would this require a clone? The same can be done with the regular Edo Tensei. Madara was Rinne Tensei'd as an Edo Tensei. he didn't spit out the sacrifice body or anything, he just straight up morphed into his live form.

Ravenlot 27 wrote: Or Edo Tensei mechanics can still somehow determine from which one the DNA was actually salvaged and thus bring back exactly him? I think it's impossible to make a 100% perfect clone of someone. Madara made a mindless clone of Hashirama, using his actual (presumably cloned) flesh. This implies that a perfect clone has no soul of it's own. The Shin storyline had a bit about them being individuals. Since they were made from different pieces of the original shin (ie teeth), and since a person doesn't have perfectly identical DNA (copy errors and all that) in every cell, each shin clone would be slightly different.

So, a perfect clone would likely have no soul, whereas a nigh-perfect clone would be a new individual with a new soul.