Originally Posted by devapain((o))
Knowing tobi its very possible that's not his whole name though. Did tobirama senju have kids? Just a random half baked theory!
considering tobi has senju DNA its possible
Again, Tobirama (扉間), 扉 = Tobira = "Door/Opening". Not really comparable to katakana "Tobi". Still, the idea is interesting nonetheless since the Second was apparently skilled at space-time ninjutsu and his progeny is unknown.
What I'm really trying to wrap my head around is why Madara knew Edo Tensei when Tobirama was supposedly the one to create it. Either a) Tobirama attempted to use Edo Tensei against Madara and Madara copied it Kakashi-style, or b) Tobirama learned Edo Tensei from Madara. Since they're both in the same generation both scenarios are possible. The implications are massive if Madara gave Edo Tensei to Tobirama.