Naruto Chapter 685-Sasuke's Return

If anyone has anygood ideas for that empty space on the left side I'll gladly hear them. I really wish Kishimoto would reveal how exactly does his Rinnengan ability work, and what other powers does he have? Cause from my perspective Naruto is still stronger than him, with him having the powers of all Nine Tail beast and access to almost all chakra types there are.