I wonder why nobody ask how the heck Uchiha Madara knew how to cancel the contract of Edo Tensei. We all know that Edo Tensei was originally made by Second Hokage, was developed by Orochimaru then further enhanced by Kabuto. Am I missing some info?
i think your
second statement is impossible....because...they
share the same bloodlines remember...both related
to the Rikudo Sennin..as the story told....
The only theory I could think of is ET is
not yet perfected by either the Second, Orochimaru
or Kabuto...As itachi said...every jutsu has its
weaknesses...and i think the weakness of the ET
jutsu are its possible to be cncelled and
reversed....How...only Kishi knows how...
That was not well said. Because When Tobirama was
revived by Oro, he wasn't in his state of
mind. He had no control of himself or thoughts.
Madara had full control of his actions, no
restrictions to his choices.
I think it's probably much much simpler.
There would have existed a time when Madara,
Hashirama, and Tobirama all existed in relative
peace before the fight with the first.
The jutsu had to have been used to be created,
perhaps even used several times. Just look at the
creation of naruto's jutsu or kakashi's.
Madara has a sharingan. He only needs
to see a jutsu performed once to understand it.
Know the signs. Know the weakness. By knowing the
sings to summon him, he was able to release the
contract. This is NOT what itachi did. Itachi
caused kabuto to release the jutsu. So kabuto was
returning the summoned dead.