In a Young Justice fanfiction, Naruto's Sage Mode could change the power dynamics significantly. His Sage Mode gives him access to nature energy, which could interact in strange ways with the various powers and technologies in the Young Justice world. For example, his ability to blend into nature while in Sage Mode might make him an excellent spy or infiltrator. Plus, his battle experience and strategic thinking from the Naruto world could help the Young Justice team in their missions.
A cool fanfic could center around Naruto teaching his friends about the unique abilities he gains from Sage Mode and Matatabi. For example, he could show how the Matatabi's chakra enhances his Sage Mode perception, allowing him to sense even the faintest of threats from a much greater distance. This could lead to new team strategies during battles against the Akatsuki.
Drawing Naruto Sage Mode's Manga Rasengan accurately can be challenging. You need to understand the energy flow, the shape, and the shading. But with practice and reference to the manga, you can get close.
The length of the 2K23 story mode really depends. Some players finish it relatively quickly, say within 8-10 hours, while others take their time and might spend 25 hours or more, especially if they're into savoring every detail and side quest.