It was said that only the 2nd Hokage invented Edo Tensei, and that Oro perfected it.
So how was it that when Madara was in Edo Tensei by Kubota he knew the signs in order to break himself out of it?
Madara was a feeble old man when Obito was hurt, but by that time Oro had already left the village and was on his own and doing experiments.
So going based off that Madara had to know about it from somewhere, so it could very well be possible that him and Oro worked together on a few things. Hence also why Kabuto knew about Tobi plans with the war and everything.
So how was it that when Madara was in Edo Tensei by Kubota he knew the signs in order to break himself out of it?
Madara was a feeble old man when Obito was hurt, but by that time Oro had already left the village and was on his own and doing experiments.
So going based off that Madara had to know about it from somewhere, so it could very well be possible that him and Oro worked together on a few things. Hence also why Kabuto knew about Tobi plans with the war and everything.
