Another theme is dealing with the existing Flash - verse. They have to interact with the known characters like Barry Allen and fit into the established storylines. For example, they might have to work with or against the Flash while trying to solve the problems in Central City. This can lead to some really interesting power dynamics and character relationships.
One great 'the flash oc speedster fanfiction' is 'Speed of Redemption'. It has an interesting original character who is a speedster and gets involved in the Flash's world in a unique way.
There are specific storylines within the New 52 Flash series where Wally gets powers. These often involve complex plot developments and encounters with powerful forces.
If Naruto becomes the Flash in fanfiction, he would be incredibly fast. He could use his new speed to outmaneuver his enemies in combat. For example, in battles against the Akatsuki, he could zip around and strike them before they even realize it. His Rasengan might also be enhanced as he could deliver it with the speed of the Flash, making it even more powerful and difficult to dodge.
If Naruto becomes the second Yellow Flash in the fanfiction, it would likely have a major impact on his relationships. His friends might be in awe of his newfound ability, and his enemies would surely fear him more. Also, it could change how he approaches battles. Instead of relying solely on his Rasengan and shadow clones, he could use his speed to quickly outmaneuver opponents and strike at their weak points.
The Flash is often considered one of the fastest speedsters in fiction. He can run at super - human speeds, allowing him to do things like vibrate through solid objects, run on water, and travel back in time. His speed is so great that he can outrun almost any opponent in the DC Comics universe.
It's hard to determine a single fastest speedster as it varies across comic storylines. However, popular contenders include characters like Quicksilver and Zoom, each with their unique speed abilities and feats.