Board Thread:Naruto Discussions/@comment-24347194-20150211225344/@comment-26302001-20150402220522

No he was not sick when he killed the Uchiha clan, or when he joined Akatsuki, or when he beat Orochimaru, or when he made Deidara join Akatsuki. It was made clear that he got super sick sometime between him making Deidara join Akatsuki and before he debuted in Part 1 to harass Sasuke. Itachi also has Yasaka Magatama which I actually forgot about lol.. Now if we are giving all powers, then Itachi has Izanami too. So he could easily use Izanami or Tsukuyomi to trap Minato for even an instant and in that instant he could seal Minato with Totsuka's Blade, Rasengan would get reflected by Yata's Mirror or wasted on a clone. He only needs an instant distraction and then boom, Minato is sealed forever.