Totsuka is said to seal everything it pierces right? But what if a jutsu like Naruto's, Magnet Release Rasengan (which is also a sealing jutsu) was thrown at it? Would they both be sealed or would totsuka somehow win?
I also think Yata is overhyped, so far Itachi only used it against 2 people (i think one, i dont quite remember him using it against Kabuto) and fans still say its invincible. Although it can be beaten with speed, people like Guy or Naruto who are fast enough, could run behind the user and break the Susano'o before the shield covers the entire body.