Maybe, it's very odd how they haven't really clarified it yet as Kabuto got taken out months back...
There are many flaws with the edo tensei that it's all a little far-fetched to begin with really. How did Kabuto sneak into the Leaf Village and go graverobbing without getting caught? Itachi grows his eyes back? Ugh, convenient. Edos are immortal, superpowered versions of their previous selves- are in fact nearly all pushovers and people like Kimimaro, Sasori & Nagato are taken out in an instant.
Yeah it's the best guess really but I completely refuse to believe that Orochimaru had Madara and all of the Hokage's DNA but yet not even a sample of Jiraiya's. Edo tensei is quite temperamental to be honest, Kishimoto just did what he wanted with it :')
You don't have to tell me this stuff ;DThe reason why cause he is bad-ass lol. He has tons of haters and a few fans but one must say that Kabuto is a cool villain. Some may disagree and others may agree. Anyways I believe he gather information from secret sources, or have been studying the Akatskui for a while and digging up missing puzzle pieces to get their full motives. Remember Kabuto is a spy so he is extremely good in gathering information effectively and I think its based on all the data and knowledge he came up with based on his spying missions lol Hope that helps
there really is no way of knowing. I think he and Oro had access to Madara a long time ago or at least Oro did and Kabuto capitalized off his knowledge. The Deidara thing is simple though. When Deidara was recruited I assume Oro was still apart of the Akatsuki and got the hand Itachi cut off, or else Kabuto got it being the "spy" of Deidara's partner.
