Board Thread:Theories and Speculation/@comment-30426414-20161218074441/@comment-25122992-20161219094200

Well, each Rinnegan of Momoshiki had a highly specialised function - the right one could only absorb techniques, while the second one could only fire them back with amplified strength. It's something we've never seen between the other Rinnegan users. In fact, Momoshiki's Rinnegan is kinda unique, since it's placed on the user's hands, and its powers are also unique (its absorption skill is superior to a normal Preta Path, but it seems to lack other Six Paths powers, or at least Momoshiki didn't invoke them properly).