This. Why 10 charac?his dominant arm is left , thats why
that does make sense thoughCause he'll look like a total retard
This seems pretty accurate to me I was thinking it was possibly the third eye from the sages forehead which also may have possessed a different power from his other eyes.since sage only gave him half power i believe he only got the rinnegan on one side.. since its also his dominant side which is also the side the moon is on its very likely its cause by the sages power that awakened it
i believe the reason why his rinnegan is unique is most likely because of the sages power merging with sasukes own power.. and then the added benefit of being indra's reincarnation..
nope, madara used his sharingan techniques (susanoo) while his rinnegan is activateddon't know. but who cares? having a sharingan and rinnegan it's cool he can use both rinnegan techs and sharingan techs at the same time.