the way izanagi and izanami are two ocular powers of the same person(shisui) even the ocular powers of tobi and kakashi match a bit. the dimensions which they use are also same. one can transfer matter or anaergy to another dimension while the other eye can teleport itself to another dimension. come to think of it kakashi got the eyes from obito and obito can be rearranged to write it as tobi with 1 "O" omitted.
Shisui MS unique ability called
"Kotoamatsukami",not Izanagi or
Izanami...LoL...Every Uchihas could perform the
Izanagi and Izanami,if they know how to use it
though...Danzou took the right MS of Shisui...and
Shisui gave the left MS to Itachi...Shisui MS is
the most powerful genjutsu among the Uchihas...An
Edo Tensei Itachi using Shisui MS to cancel the ET
jutsu on him...Shisui is the best friend of
Itachi...Shisui tried to stop the coup'
d'etat of the Uchiha by using his
kotoamatsukami,but he failed and Danzou took his
right MS bcoz he don't trust Shisui...Itachi
transplanted Shisui MS into his crow and store it
inside Naruto...Itachi seen that Naruto is very
similar to Shisui...Shisui commit suicide and it
looks like he destroyed his MS to prevent anyone
to misuse his MS...
Shisui that I know...before you post anything into
the blog,make some research
though...otherwise,people will make fun of you...)
I have been reading and watching Naruto for quite
some time on this website and at other websites.
I can say that the Obito answer is getting old and
disproven. I can't say for sure who it is
other than maybe its Madara's brother or the
3rd's teammates (not sure if I correct on
this but wasn't there an Uchiha that was
passed by for leadership in an episode. The one
thing I did notice but I see no one mentioning is
that Kakshi and Tobi have the same technique with
the eye, but no other Uchiha has it. Could it be
the fact that maybe Tobi is not an Uchiha since we
all know Kakshi isn't either. Or did I miss
something that someone all ready explained the
reason why bothg have the dimension techique and
no one else does.