LCpl Burgos
Member
I can't see saske being used anymore, now that he is with his brother, I believe this is his turning point, and wont be used by tobi even he tobi still wanted to.
i think you're kind of describing Zetsu. 1 half uchiha-dna and 1 half senju.The So6P was of both Senju and Uchiha blood. The 10-tails was bound only by the So6P, who had Renningan, which means Gedo. We've seen that Gedo can store a crapload of chakra and is a fighting monster(empty 10-tail shell maybe?). My guess is that Tobi needs some pure, grade-A Uchiha blood to mix in with the pure, grade-A Senju blood he got from..... that wood guy, whatshisname, inorder to create a vessel strong enough to contain the raw power of the 10-tail.
Or maybe not. Plot-no-Jutsu.