Well, it really depends on the specific fanfiction. Some fanfictions do make Ichigo overpowered. They might do this to explore different storylines or just for the fun of it. For example, in some, he could have a sudden boost in his reiatsu that makes him almost unbeatable. But not all fanfictions take this route. There are also those that focus on his character development in a more realistic way within the context of the Bleach universe and don't make him overly powerful.
It could be a sword that can cut through any substance, like the Susanoo easily. Just imagine Naruto swinging it and slicing through powerful jutsu defenses as if they were paper.
One characteristic is that the main character often has extremely powerful abilities. For example, they might be able to defeat any opponent with ease. Another is that the plot may revolve around the character showing off these overpowered skills in various situations, like in battles or competitions. It can also lead to a sense of wish - fulfillment for the readers who enjoy seeing a character dominate in the fictional world.
It could also be shown through the reactions of other characters. If other players are in awe of him or constantly trying to figure out how he does what he does, it emphasizes his overpowered status. They might be intimidated by his presence in the game or try to learn from him. In addition, the fanfiction may describe his gameplay in a way that makes it seem effortless yet highly effective. He might make moves that are so precise and powerful that it's clear he's on a whole different level compared to the average gamer.
One common element is Naruto having new and extremely powerful jutsu. For example, he might have a super - strong fire - based jutsu that can destroy entire villages in one go. Another element could be that he has enhanced physical abilities like super speed and strength that make him almost invincible in combat. Also, he may have a special connection to some sort of ancient or powerful entity that gives him an edge over everyone else.
One common theme is the exploration of Percy's potential. Since he was already a powerful demigod in the original series, fanfiction often takes that further to see just how far his powers can go. For example, he might gain control over new elements or have enhanced combat abilities.
A common theme is rapid power growth. Since the focus is on Naruto being overpowered, he often gains strength much faster than in the original series. For example, he might quickly master difficult jutsu or obtain rare powers.
Another aspect could be Mochizuki Touma being a part of a gaming tournament in the fanfiction. His overpowered status makes him a target for other players who are both envious and afraid of him. However, he uses his skills not just to win the tournament but also to expose some unfair practices that are going on behind the scenes in the gaming community.
A common theme is the change in team dynamics. When Kuroko is overpowered, it often affects how his teammates interact with him. For instance, they might be in awe or feel pressured. Another theme is the challenge he poses to opponents. His overpowered abilities make the games more intense for the opposing teams.