One exciting scene could be Harry using his Patronus charm to fend off dark wizards. The Patronus, a bright and powerful form, would cut through the darkness.
Well, it could be that there was a personal vendetta against Harry at the Quidditch World Cup. Some wizard or witch who had a grudge against him might have started something, and Harry had to fight back. He is known for not backing down when faced with a threat. Also, if there was a plot to steal the Quidditch World Cup trophy, Harry would fight to prevent that from happening as he values fairness and the importance of the sport.
In Harry Potter fanfic, Viktor Krum is a character who could be related to the World Cup in various ways. For example, his participation in the Quidditch World Cup could be a central plot point. Fanfic writers might explore his experiences during the event, his interactions with other characters like Harry Potter, and how the World Cup atmosphere affects him.
He could be fighting against Death Eaters or their supporters. Given their history of causing trouble and their dislike for Harry, they might show up at the Quidditch World Cup to cause chaos, and Harry would have to fight them.
A fanfic could be about Viktor's journey to the World Cup. It might start with his selection for his national team and his training regime. He could be facing difficulties like injuries or personal issues that might affect his performance at the World Cup.
Well, in such a fanfiction, Harry could have found a magical fire - producing object that gives him the ability to fight the dragon with fire. He might have to learn how to handle this new power quickly while in the heat of the battle. The dragon, on the other hand, would use its natural abilities like flying and breathing fire in return. It would be a battle of wits and power.
Well, it would be quite a strange yet exciting scenario. Harry's magic skills would surely give the Allies an edge. He could use spells like 'Expelliarmus' to disarm enemy soldiers or 'Accio' to retrieve important items or intel. His invisibility cloak would also be a great asset for stealth missions.
Another plot could revolve around a conspiracy to fix the Quidditch World Cup results. A group of dark wizards might try to influence the outcome for their own gain, like betting on a certain team to lose. A young wizard or witch who discovers this plot then has to find a way to expose it and save the integrity of the tournament.
In a possible fanfiction, Harry could be at the Quidditch World Cup and say something like 'The floor here is so dusty, it's a wonder we can even see the players clearly!' while looking around the stadium floor.