Doubts in Naruto
2. Dou's purpose is undoubtedly to gain strength, which can be seen from the fact that he implanted white snake cells into his body after orochimaru's death.
Spot wants to test Sasuke's strength and talent, let him exercise his eyes, and then wait for an opportunity to use him to do things for himself.
This is Senju Hashirama, a thousand hands are not a room, an ape fly and a good book, Namikaze Minato and Gang Shou.
5. Heaven and earth are the foundation of all things, and the highest state of incantation is heaven, followed by earth, and other incantations are far less capable than heaven and earth. Personally, I think Jyuugo has the strongest spell ability. After all, he is the original owner of the spell. Once you get the spell, once chakra runs out, he is in danger of being swallowed up by orochimaru, and the probability of heaven and earth being swallowed up is the highest.