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[UzumakiChencho]

First of all look at the picture below

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okay Who else have done the edo tensei besides kabuto??

orochimaru right

madara tells muu (taken by kabuto) who is the controller of the edo tensei?
Muu said "I'm kabuto HIS ASSISTANT"

But isn't kabuto 's orochimarus assistant
by the way who teach the edo tensei to kabuto maybe orochimaru was the one who who teach him

another think for those that think that tobi is with madara.you remember this when kabuto summon madara in front of tobi and tobi was all scare . okay WHY would he be scare off since they have a plan and they have mission to take one WHY would he be scare


so i think that Madara and Tobi don't know each other so there can be a possibility that they will fight

 

[El Batman]

To answer your question- Tobirama knows edo tensei. Maybe even Nagato knew edo tensei since the Rinnegan allows your to "bring forth all ninjutsu".

 

[gordo1]

Tobirama.

 

[Punk Hazard]

i think he meant Tobi. i doubt he was including Edo Tensei at all

 

[UzumakiChencho]

we haven't seen tobirama using it he just invented the jutsu

 

[AP2k]

I think he meant he was tobis assistant

 

[Black Adam]

Plus Tobi was completely clueless about Edo Tensi but he knew all about the Uchiha massacre and what took place between Madara and Hashirama who is this guy?