What was the most important thing for ninjas before Naruto's power collapsed? Intelligence, under the low-martial world view, per capita high attack and low armor death blood, the amount of chakra is not very much, do not support everyone to repair a complete set of offensive and defensive systems.
Knowing what you're going to do, you can find specialized people or tactical targets
For example, Payne Six Dao is very strong, but the fact that Helai will also lose to Liudao is actually due to lack of intelligence, if he knew in advance, Helai also had a good chance to kill Payne alone with the support of the magic of the two toads
There is also a flying segment, don't care how ridiculous the Shikamaru single brush flying segment is, but it still fully shows that the flying segment is a waste of ninja intelligence leaks, and it is very targeted
What about Kakashi? Copy ninjas! Thousands of ninjutsu have been copied!
You want to target me? Sorry under full properties. What ninjutsu will I do? Offensive raids of defenses that treat everything in the space. Heard you know my intelligence? so？ Let's take a look at one for me
As for Kakashi targeting others... Or we won't mess with this bullying thing.
As for why they are all those kinds of ninjutsu, it is probably because of the best versatility. Moreover, although the IQ of Kadian is high, but when it comes to fighting, it is mostly human commonality that is used with ease, so many seals, all remember to use it at any time
Kakashi didn't chop anymore and copied a b-level ninjutsu water dragon bullet that required 44 seals.
Kakashi himself developed Chidori, 3 seals.
All kinds of pupil techniques, basically condensing chakra on the line, do not need to print.
Spiral pills, do not need to print, as long as you work hard to practice the theory of what nature changes state changes can be added.
The game version is to be updated, and the ninjutsu of the retreat environment was used once or twice to entertain the line, especially IMBA's to stay and continue to use.
For example, everyone has a variety of doppelganger methods, but there are only a few that are easy to use, and there are not many Kakashi blues, so you can't always make up a seven-attribute doppelganger to summon a dragon in a battle, right?
So leave a few especially good ones on the line, this is very similar to the dnd setting of the master, every day to write down the spells to be used the next day, the old spells that are not easy to use do not remember...
The first is the nature of ninjutsu, generally speaking, except for some family secretaries and blood inheritance boundaries, ninjutsu is divided into five attributes, namely fire, water, wind, earth, and thunder. The average upper ninja basically masters at least two or more attribute changes and can use the ninjutsu of this line. Kakashi is special, he is born a ninja with all five attributes, so Kakashi can copy all the ninjutsu of others. The essence of ninjutsu is to release chakra through specific mudras, because the mudras are different, so ninjutsu is also different, and the principle of writing wheel eyes is to quickly copy other people's handprints to use ninjutsu.
In the plot, the enemies that Kakashi faces are still relatively weak at the beginning, like not cutting the enemies at this level are already the strong enemies that Kakashi encounters. In the confrontation against Zai No Chop, Kakashi did rely on the copying ability of the Writing Wheel Eye to negotiate with the Zai Bu Chop and successfully copied the Ninjutsu of The No More Chop, defeating the No More Chopper Ninjutsu. However, after not cutting it, Kakashi encountered enemies became more and more powerful, and everyone was no longer fighting by ordinary ninjutsu, either to consume a lot of chakra's powerful ninjutsu, or to be a variety of secretaries, and if you fight with these enemies, Kakashi's writing wheel eyes basically can't play any effect.
In the later plot, Kakashi's enemy is only a member of the Xiao Organization, and the members of the Xiao Organization basically have their own powerful arcane skills, which Kakashi cannot imitate at all. And although Kakashi has a thousand kinds of ninjutsu, but there is definitely a focus, Kakashi is a genius, but it is not simple to master a ninjutsu, it is not enough to simply know the mudra, there are many other aspects to master, to use more to practice proficiency.
Kakashi only had twelve years from the time he got to write the wheel eye to the official plot, and during that time Kakashi copied thousands of ninjutsu on average, it would take three or four days to copy a ninjutsu. Perhaps Kakashi could simply use ninjutsu, but it should not have reached a very proficient level. The few ninjutsu that Kakashi used more often were probably a few ninjutsu that he was very skilled in, such as the defensive earth flow wall, the water dragon bullet of the water and the fireball of the fire, etc., all of which were very practical ninjutsu. Kakashi also has his own ninjutsu Reich as his own hole card, and in the later stage, he also developed a more powerful ability to write wheel eyes, that is, Shenwei, and the basic ability to write wheel eyes is naturally very small.