Dark wizards or witches who are on a power - hungry spree could be the antagonists. They might see Daphne as an easy target or a way to get to Harry Potter himself. So they kidnap her to lure Harry into a trap.
The obvious antagonists would be the Death Eaters. They are Voldemort's followers and are often causing trouble in the wizarding world. In this fanfiction, they might be the ones who have put Cedric in danger, either to lure Harry or for some other dark purpose.
Well, it could be that Daphne is in danger during a dark wizard attack at Hogwarts. Harry, being the hero he is, uses his skills and magic to fend off the attackers and save her. Maybe she was in the wrong place at the wrong time near the Forbidden Forest.
In many Harry Potter fanfictions, Daphne Greengrass might be portrayed as a Slytherin student with her own unique traits and storylines. Sometimes she's a friend, sometimes an adversary, or even a love interest, depending on the author's imagination.
One likely antagonist could be Draco Malfoy. He's from Daphne's social circle and might not approve of her being with Harry. He could try to expose their relationship out of jealousy or because of his pure - blood supremacist views.
One popular type of 'Harry Potter' fanfiction involving Daphne Greengrass often explores her relationship with other characters in the wizarding world. In some stories, she might be portrayed as a strong - willed Slytherin who forms an unexpected alliance with Harry Potter. For example, she could be involved in a plot to uncover a hidden mystery within Hogwarts that the Ministry of Magic is trying to keep under wraps.
Theodore Nott could be another main character. He might be a friend of Daphne or her future husband. In the fanfiction, he could be involved in the events leading up to the marriage, like helping with the preparations or being part of a sub - plot where he has his own feelings or motives regarding the marriage. Additionally, Luna Lovegood could make an appearance, adding her unique perspective to the story and perhaps being a friend to Daphne during this important time.
It could be some dark wizards who are not part of the Death Eaters but are still up to no good. They might see Daphne as an easy target during the busy and chaotic World Cup. They could be after her family's wealth or some magical artifact she might be carrying.
In many fanfictions, Daphne Greengrass is often depicted as intelligent. She is a Slytherin, after all, and her sharp mind is shown in how she approaches her studies and solves problems. For example, in some fics, she outsmarts her classmates in potions class.
One interesting fanfiction idea could be that Daphne Greengrass is an Animagus in the form of a snow leopard. In this fanfic, she could use her Animagus form to secretly explore the Forbidden Forest, encountering magical creatures and uncovering secrets. This would add an element of mystery and adventure to the Harry Potter universe.
In Harry Potter fanfiction, Daphne Greengrass can be a key figure in alternate storylines. For example, she may be part of a relationship with a main character, like Draco Malfoy or even Harry Potter in some very different takes. Her family's status in the Slytherin house and the wizarding world gives writers a lot of scope to explore power dynamics and social hierarchies within Hogwarts.