Another idea is that the foreign students who come for the Triwizard Tournament bring with them a new type of magic that Hogwarts has never seen before. Harry becomes interested in learning this magic, but it's not without its risks. Some of the Hogwarts teachers are against it, thinking it might be dangerous or against the school's traditions.
A plot could be that Harry has premonitions about the Triwizard Tournament tasks before they happen. These premonitions are not clear at first, but as he gets closer to each task, he starts to understand them better. It adds an element of mystery and foreshadowing to the story.
Perhaps there is a love triangle that forms during Harry's 4th year. Not just between him, Cho Chang, and Cedric Diggory, but also involving a new character. This love triangle could cause all sorts of drama and distraction for Harry during the tournament, and it could also have an impact on his performance in the tasks.
A practical answer is Chapter 73, because it turns the idea into a concrete scene. The chapter opens with Director Sun, tongue-tied, finally managed to squeeze out a sentence,..., adds pressure through Her favorite food is rouge goose, her favorite amusement is Dancing Gun,..., and ends on Despite.
Look to Chapter 110 for the clearest answer. It begins with Jiang Li, carrying a wooden basin, walked over to the well., keeps building through Uncle Zhao's house didn't have a water heater, so she could only make do..., and lands on My parents died, and fortunately, Daddy found and took me in..
Look to Chapter 68 for the clearest answer. It begins with Jiang Li carried the noodles straight out of the kitchen and came to the..., keeps building through Uncle had already returned from the fields, and he was sorting through a..., and lands on But didn't Uncle Zhao say he was still sick?.
Look to Chapter 61 for the clearest answer. It begins with Hahahaha, oh my god, Jiang Li's mouth is even more venomous., keeps building through She broke Jiang Yan's defense with just one sentence." "Laughing to death,..., and lands on A cold shower is pretty normal, right?.
Look to Chapter 85 for the clearest answer. It begins with Facing everyone's skepticism and curiosity, Jiang Li explained fluently:..., keeps building through The tomatoes are grown by them, and the eggs are also from their..., and lands on This fresh and vibrant flavor blended perfectly..
Chapter 93 is the strongest chapter-level answer because it starts from Jiang Li looked back and saw several aunties linking arms, walking up the... and follows through on I did the same when I was young, and when my dad found me, I got a beating....
Look to Chapter 79 for the clearest answer. It begins with Jiang Li leisurely said, "I bought this weeding machine, and according to..., keeps building through He, himself, had just finished weeding a piece of land, and to top it off,..., and lands on Um..." Wen Jiaojiao bit her lip, "Could you.
If you want the clearest chapter reference, go to Chapter 92. Early on, Jiang Li, lightened from any task, had plucked a few leaves from the...; later, the chapter leans on She then produced a book from somewhere and began flipping through it on....
If you want the clearest chapter reference, go to Chapter 96. Early on, Jiang Li's words seemed absurd, yet there also seemed to be a trace of...; later, the chapter leans on Her hand holding the phone began to tremble uncontrollably..
If you want the clearest chapter reference, go to Chapter 75. Early on, The ordinary people in the livestream were all stirred up by this scene.; later, the chapter leans on [Did you see that, did you see that?.