One, Uchiha Itachi.
Although Itachi's strength is very strong, due to his serious illness and overuse of the kaleidoscope writing wheel, his physical condition is getting worse and worse, and he can't withstand the toss and consumption at all. And after the reincarnation of the filthy soil, the ferret is not only cured, the chakra is more, but the kaleidoscope writing wheel eye is gone, in this state, it can give full play to its strength, and there is no need to worry about not being durable enough.
Second, Jun Malu.
Like Itachi, Junmaro was also a young genius who died young due to illness, so after he was reincarnated in the filthy soil, he naturally gained a relatively healthy body. Although, in the Fourth Ninja World War, Jun Maro's performance was not very impressive, but in the battlefield surrounded by strong enemies, he was able to hold on unharmed until the moment when Yakushidou was reincarnated from the filthy earth, which was actually very remarkable.
Three, three generations of Hokage.
Although the three generations of Hokage were able to master thousands of ninjutsu, his strength had been declining due to his age, and the amount of chakra in his body was getting smaller and smaller. And after the reincarnation of the filthy earth, the three generations of Hokage not only did not have a sore waist and no longer hurt his legs, but also obtained an almost infinite amount of chakra, which could be used for him to perform all kinds of ninjutsu to his heart's content.
Fourth, four generations of Hokage.
Although the four generations of Hokage were known as the fastest men in the ninja world during their lifetimes, there is still a certain gap between them and those legendary ninjas in terms of attack power and defense. After the reincarnation of the filthy soil, the fourth generation not only activated half of the Nine-Tails Chakra sealed in his body, but also directly activated the golden body mode, which improved his attack and defense in an all-round way.
Five, Madara Uchiha.
Since the corpse used by Madara was specially made by Yakushidou, Madara Uchiha not only retained the eye of reincarnation that he activated before he died, but also implanted an intercolumnar cell in his body that could use Mu Dun. In this way, no matter how powerful Madara was when he was alive, he would be stronger after he was reincarnated than he was before he was alive.