Board Thread:Versus Debates/@comment-26107879-20180325045722/@comment-34752936-20180327111249

Namikazenaruto9 wrote: HeroOfSacrifice wrote: Because it requires one's DNA and a living vessel to sacrifice. Tobirama doesn't have either of these. I think so we have reach an impasse here. I don't recall Kabuto using this DNA as you put repeatedly in the 4th War after completing the preparations. How do you explain that?

Soda can was missing from Sasori's puppet body, so he possibly swooped in a took it away before Kankuro showed up and took the body. Or, as Sasori's subordinate, Kabuto knew where Sasori put bits of his real body and grabbed some of those. Same goes for every other revived person. For Itachi,Since Tobi had the body, all Kabuto needed was just DNA of Itachi. Moreover, Obito/Tobi was in turn working with Kabuto so it’s not a big deal he got a hold of Itachi’s DNA from Obito only.

But, I susupect that there would’ve been no need for that. Orochimaru was pursuing Itachi for so long, I believe that he already had access to his DNA anyhow. The same was used by Kabuto to resurrect Itachi.