Board Thread:Versus Debates/@comment-26636534-20160221124823/@comment-25122992-20160301221517

C`mon, stop splitting hairs already. It's just as simple - Itachi used Totsuka blade to slice off the heads of the Oro-serpent, and only then pierced him to seal. To seal Nagato, he had to pierce him as well. So, the Totsuka blade must pirece the target to begin the sealing process.