Originally Posted by Earthbullet
but wasnt he brought back by orochimaru and sealed by the 3rd?
I kept saying, three times at first then just kinda quit, I'm under the impression he used the same seal as Madara to break the Edo contract. Then, slipped out past the sound 4's barrier (since in our theory Tobimara + Orochi had been plotting together) leaving a proxy behind to get sealed. This allows Tobimara to roam freely. Immortal, full of chakra, and continuing to plan.
That simple, but at the same time who knows.