Pein loses mid diff at most,, but Nagato would still win regardless of all the edos,
--All their ninjutsu is absorbed by preta,
--Orochimarus Summons are blown away by a boss sized ST or are outnumbered through nagatos summons
--Through multiple summons aiding in nagatos mobility and shared vision, nagato can attack them all effectively
--Kimimaro, Zabuza, Hizashi and Asuma are utmost non factor, as they are taken out by either BT+Ningendo,, impaled by chakra rods, or overwhelmed by multiple summons, ST and shurado missiles,, as the edos can be sealed by ningendo and jigokudo,
--Once the edos are taken care off, Nagato can finish Itachi and Orochimaru through CT,
--All their ninjutsu is absorbed by preta,
--Orochimarus Summons are blown away by a boss sized ST or are outnumbered through nagatos summons
--Through multiple summons aiding in nagatos mobility and shared vision, nagato can attack them all effectively
--Kimimaro, Zabuza, Hizashi and Asuma are utmost non factor, as they are taken out by either BT+Ningendo,, impaled by chakra rods, or overwhelmed by multiple summons, ST and shurado missiles,, as the edos can be sealed by ningendo and jigokudo,
--Once the edos are taken care off, Nagato can finish Itachi and Orochimaru through CT,