There's a chance it could be a new character introduced in the fanfic. This character could be from a far - off land with a different style of jutsu. They recognize Naruto's strength and determination and offer to teach him their secret jutsu in exchange for Naruto helping them with a problem in their homeland.
Maybe Sasuke. Although they are rivals, they also have a deep bond. Sasuke might have come across a unique jutsu during his travels and decide to teach it to Naruto so that they can both become stronger and better protect their village.
It could be a new form of Rasengan. Maybe Naruto discovers a way to combine different elements with the Rasengan more effectively, like adding lightning to it for a more powerful and faster attack.
If Naruto has a new secret jutsu in fanfic, like a super - powerful healing jutsu, it could change the story by allowing him to save more lives during battles. For example, he could heal injured comrades immediately and keep them in the fight. This would boost the morale of his side and potentially change the outcome of many battles.
One interesting Naruto secret jutsu in fanfiction could be a time - traveling jutsu. It allows Naruto to go back in time and change certain events in the ninja world. This can lead to all kinds of new storylines and character developments.
A third idea for a Naruto poison jutsu fanfic could be a story set in a different era of the Naruto universe. In this time, poison jutsu is a highly respected and feared art. A young ninja, inspired by tales of Naruto, tries to master poison jutsu. However, they face many challenges, including a corrupt master who wants to use the ninja's skills for evil. The young ninja must then decide whether to follow the master or break away and use their skills for the greater good.
One idea could be a fanfic where a young ninja discovers a unique way to combine lightning jutsu with other elements like water, creating a new and powerful technique. This could lead to him being sought after by different clans for his knowledge.
There could be a jutsu that allows for instant teleportation across long distances. This jutsu might be a new discovery in the fanfiction world, perhaps created by a character who has been experimenting with space - time ninjutsu. They might use it to quickly get in and out of battles or reach far - off places in a blink.
To create a jutsu in Naruto Jutsu Maker Fanfic, look at the existing jutsus for inspiration. Notice how they are named, what they do, and how they are used in battles. You could base your new jutsu on a character's personality or backstory. If your character has a connection to water, like growing up near a big lake, maybe the jutsu involves creating huge water serpents. Another aspect is the chakra consumption. Decide how much chakra your jutsu will use. If it's a very powerful jutsu, it should probably consume a lot of chakra, but you can also create some low - chakra - cost jutsus for quick and repeated use.
I really like this fanfic. It often explores unique aspects of the Naruto universe that the original series might not have delved into deeply. For example, it could introduce new jutsu combinations or character developments that are quite refreshing. The way it continues from the first part usually means it builds on the existing plot and character relationships, which can be very engaging for fans who are already familiar with the initial story.
A fanfic could also explore Naruto using the Smoke Jutsu for a rescue mission. Suppose some of his friends are trapped in a building surrounded by enemies. Naruto uses the Smoke Jutsu to cover the area. The smoke is so thick that the enemies can't see. Then he sneaks into the building, rescues his friends, and they all escape under the cover of the remaining smoke.
He might learn a time - traveling jutsu. This would be really cool as it could allow him to go back and change certain events in the Naruto world, or gain knowledge from the past to use in the present battles.