How did nagato become weak?

Answer 1

Naruto succeeds in convincing nagato that he will bring peace to the world after that nagato uses his Gedo art of rinne rebirth and revives all those who were killed by pains in the hidden leaf after that he dies due to excessive use of his chakra. It happens in episode 174

Answer 2

Nagato give his life to bring back all the people he killed in his invasion of konoha. he uses up his last bit of chakra, reviving kakashi, jaraya, and all the konoha ninjas his clones killed.

Answer 3

nagato?? well i heard (sorry i havent read that part of the manga in a while)

he felt bad for killing people of konoha that were so close to naruto, and in order to bring back all those people (im not sure about all their names but im pretty sure one was kakashi and most villagers who died by Pain's attack), he used Gedo Rinne Tensai no Jutsu which takes lots of chakra. Thus he died due to overuse of chakra.

-When Pervy Sage Faces Pain he incounters one of pains bodys nagato and kill hims by summoning him into his summons body (the big toad) he falls in to gastric fluids but then comes up and sticks a spear thourgh the pervy sages body

Answer 4

If you remember in Naruto Shippuden episode 173...Nagato fights a bunch of shinobi and ANBU members and Hanzo..he uses a summoning jutsu and summons this big statue like thing..and poles come out of the summon creature and stab Nagato in the back, and Nagato transfers his chakra to the statue like creature and a chakra dragon thing kills the shinobi and ANBU people..and after hes done using the summon creature he becomes skinny and weak.

Answer 5

Neville Longbottom pulls the sword of Gryffindor out from the sorting hat and slices off her head!

Answer 6

Episode 174