Originally posted by: Mut@t@
- each dot represents: a super tai/gen/ninjutsu that a sharingan user is able to do. (gen = mangekyou, nin = black flame, and tai = ???)
Actually, Tsukiyomi is the special genjutsu and Amaterasu is the mysterious black flame (most likely a ninjutsu). The Mangekyou Sharingan is a state or possibly "advanced" form/manifestation of the Sharingan which only Itachi can use at the moment. From what we've seen, the Mangekyou Sharingan is what gives Itachi the ability to use those mysterious techniques.