Board Thread:Theories and Speculation/@comment-1872728-20160229033316/@comment-734582-20160321223449

Legendary Super Saiya-Jin 4 wrote: As for the "specialty" argument both the Senju and Uzumaki's techniques can be learned by others save for the Uzumaki's Adamantine Sealing Chains. However, that doesn't mean it's easy. It basically seems that a non-senju can learn only some of their techniques, while a Senju can learn all of them. (at the same time)

The Uchiha have their Sharingan, which basically makes you a Chunin-level ninja immediately and at 3 tomoe it's near Jonin level. Mangekyou makes you near instantly Kage level. Yet the Senju matched this kind of power without it. Even Izuna -who had MS- was defeated by Tobirama (who has no KKG whatsoever)