Board Thread:Theories and Speculation/@comment-36885534-20180911151743/@comment-30323490-20180911183652

Isn't the technique just summoning the Shinigami? And i'm pretty sure that the Shinigami is one entity.Now, the user's power does matter, since Hiruzen couldn't complete the whole process, but i wonder is the Shinigami himself has his limits. I mean could he seal absurd power like a TTJ? The most powerful things he sealed were half of Kurama and Hashirama's soul, but those are nothing compared to a TTJ or Jiuubi himself.

Also @Thekillman, probably Hagoromo never knew about Shinigami.