In the anime Naruto, Uchiha Ban can be said to be a legendary ninja, in the anime, Uchiha Ban's plan of the Eye of the Moon almost destroyed the entire ninja world, and he and his good friend, the ninja god Senju Pillar, also had many battles, the End of the Valley Battle, the outside world rumored that Uchiha Ban was dead, but this was not the case.
After the Battle of the Valley of the End, Uchiha Spot obtained the cells between the Thousand Hand Pillar and transplanted it into his body, but at this time, Uchiha Spot had lost a writing wheel eye, and there was no way to compete with the Thousand Hand Pillar, but in Uchiha Ban's later years, he opened the legendary reincarnation eye.
After opening the Reincarnation Eye, Uchiha Ban was already an old man, and he no longer had the ability to fight, so he chose to transplant the Reincarnation Eye to Nagato, who had the bloodline of the Thousand Hands and the Vortex Clan, and according to his plan, in many years, Nagato would resurrect Uchiha Ban.
But the question is, Nagato didn't know the news of Uchiha Ban at all, why was Uchiha Ban so sure that Nagato would resurrect him? If Nagato had woken up during this time, wouldn't Uchiha Ban's plan have failed completely? In fact, the reason why Uchiha Ban is so confident is because he has two plans.
The first plan was to control Nagato through the Uchiha Belt Soil, after Uchiha Spot's death, the Belt Earth alias Uchiha Spot, and taught Nagato the method of using the reincarnation eye, with the restriction of the Belt Soil, Nagato could also better implement the Plan of the Belt Soil, and the Belt Earth could also impose a wave of restrictions on Nagato.
But Obito can't always follow Nagato's side, if so, Oshito's identity will also be exposed, and Oshito doesn't have time to do his own thing, so Uchiha Ban is not a fool, and when he transplanted the reincarnation eye, he didn't know Oshito.
In fact, when Uchiha Ban transplanted the reincarnation eye to Nagato, he already had his own plan, even if there was no appearance of soil, Uchiha Ban had another trump card, and Uchiha Ban was very sure that this trump card could help him complete the resurrection plan, this trump card was the final black hand behind the scenes, black jeopardy.
Kurobi is the will left by Hui Ye, and can also be said to be the third child left by Hui Ye, after Uchiha Ban awakened the reincarnation eye, Kuro Jedi appeared in front of Uchiha Ban as the will of Uchiha Ban, and said that he was a product made by Yin and Yang to win the trust of Uchiha Ban.
Although the combat strength of Kuroji is not very strong, and even said to have been cut off by Nagashiro's knife, but Kuroji has a very strong vitality, and Kuroji can also control other people's bodies, in the anime, Kuroji helps Uchiha Spot by controlling the body with soil, and later through the body with soil sneaks up on Bane to resurrect Ōtsuki Kiyuki.
Therefore, even if there is no Uchiha belt soil, through the Black Jedi, it is possible to control Nagato to perform the Outer Path Reincarnation Innate Technique to resurrect the Uchiha Spot, but kuroji wants to control other people's bodies there is a prerequisite, that is, this person must be extremely weak to be able to do so, otherwise, Kuroji will be difficult to control this person.
However, Nagato's body is already very weak, if Kuroji wants to control it, the difficulty will be much smaller than that of the belt soil, and with Kuroji's strategy, he will definitely find a way to let Nagato enter that extremely weak state, and then Kuroji will take advantage of the void to directly resurrect Uchiha Spot.
In your opinion, why is Uchiha so confident that Nagato will revive himself?