[quote=Hirothelegend]
Rennegan is more OP than Sharingan, thus is why Shadow prohibits Rennegan in this RP :P
[/quote]

Depends on the level of Sharingan, I think both could probably be placed on the same level though.

And someone would have to have a large amount of chakra to be able to control the Rinnegan....Yeah, best not to allow it unless necessary to the plot, in my opinion.