Ten Tail - the origin of rinnegan and sharingan
After SO6P defeated juubi and sealed in his body then make his eye evolve to rinnegan
The juubi itself has rinnegan eye with six tomoe, each tomoe is simbolize tailed beast power.
That's why in incomplete form the juubi has only 7 tomoe, other tomoe simbolize hachibi and kyuubi.
My conclusion is eye power : rinnegan and sharingan is the power belong to juubi, it's why make hatred
Originally SO6P has powerfull sealing technique and sage tecchnique to defeat juubi.
it's bring me to conclution how naruto defeat juubi, it's come from his sealing technique and sage technique combine.
what do you think guys?