I'm not sure but I thought I remembered the manga stating each Sharigan (left eye, right eye) has it's own special ability when MS is reached. Sasuke's left eye uses amaterasu, the right is ? But my question is with the fact that Obito and Shisui, where upon unlocking their respectful MS's, only unlocked one ability for both eyes. Yet their ability far passed that of Sasuke, Itachi or Madara... Kamui and Kotoamatsukami far surpass amaterasu, tsukuyomi or any other ability. Why would Sharigan abilities differ so greatly? Byakugan seems to all share same traits throughout and been around just as long. Does this mean Indra could do all plus some ? It just bugs me to see Sasuke's, Itachi's and Madara's same general abilities over and over yet have not seen the extinct to what the two actually special Sharigans could do at full power