What could be the plot in 'harry fights back fanfiction'?

Maybe Harry Potter discovers a new dark threat in the fanfiction and has to fight it using his magical skills and the support of his friends. He could be facing a powerful dark wizard who has found a way to break through Hogwarts' defenses.

Perhaps in this 'harry fights back fanfic', Harry discovers some new powers or spells that he uses to fight back. He could be tired of being pushed around by Voldemort's followers or other bullies in the magical community, and he uses these newfound abilities to protect himself and his friends. For example, he might learn an ancient spell from a hidden book in the restricted section of the library. This spell gives him an edge in combat and he starts to turn the tables on his adversaries.

The fanfiction could start with Harry being magically transported to Kaguya's world. He'd be confused at first but quickly realize he has to fight to survive. Harry's wand would be his main weapon. He might learn some new spells during the fight, perhaps a spell that can nullify Kaguya's ability to freeze time. As the fight progresses, both characters would start to respect each other's power, leading to an unexpected alliance at the end.

In a 'Harry Fights Alone' fanfiction, the plot could involve Harry being betrayed by his friends. Maybe they are put under a spell that makes them turn against him. Harry then has to face the dark forces all by himself. He might have to rely on his own wits and the few spells he has mastered alone. For example, he could be in a situation where he has to battle Voldemort's minions without Ron and Hermione to back him up, and he discovers new powers within himself during this struggle.

Well, perhaps Harry has to use his magic skills to resist some sort of spell or curse that is trying to force him into hibernation. Maybe there are dark forces at work trying to put him out of action for a long time.

In this fanfiction, perhaps Harry could use his wits more than magic. He might outsmart his enemies by setting up elaborate traps, like he did with the troll in the first year but on a much larger scale. He could use his knowledge of Hogwarts' secret passages to his advantage, leading his foes into dead - ends.

In a dark corner of Hogwarts, Harry was fuming. Malfoy had once again taunted him about his parents. Harry's eyes blazed with anger. Without a second thought, he lunged at Malfoy, his wand at the ready. 'You won't get away with this anymore, Malfoy!' he shouted. Magic crackled in the air as they dueled, Harry's newfound determination pushing him forward.

Perhaps in this fanfic, Harry teams up with some of his Hogwarts friends. They combine their magical knowledge and courage. For example, Hermione could use her research skills to find a weakness of the Daleks, while Ron provides support and loyalty in the fight. And Harry, being the main hero, directly engages with the Daleks using his powerful spells like Expelliarmus but modified to have an effect on the Daleks' technology.

In this fanfic, perhaps the goblins have some sort of vendetta against a particular group that is also a threat to Harry. So they join forces. Harry could learn a great deal from the goblins' different approach to magic. And together they could stage some epic battles, using the goblins' underground tunnels as strategic points for their fight.

Well, it could be that Merlin, with his powerful magic from his own legend, sees Harry as a threat in Slytherin. Maybe he's been influenced by some dark force in the Slytherin common room. And so, he decides to fight Harry. Harry, of course, would use his Gryffindor - like courage and the spells he's learned at Hogwarts to defend himself.