Well, sometimes the story could be about a young and inexperienced trainer who accidentally captures Darkrai. This sets off a chain of events where the trainer has to learn quickly how to handle such a powerful Pokémon. The trainer might face challenges from other trainers who want to take Darkrai for themselves, and also has to deal with Darkrai's own resistance at first.
In many of these fanfictions, there could be a rival trainer. This rival might be jealous of the captor for getting Darkrai and try to steal it. Also, there could be a Pokémon professor - type character who gives advice on how to handle Darkrai. For example, they might know some special techniques to keep Darkrai calm while captured.
In some 'Nightwing gets captured' fanfictions, he might be captured by a powerful villain like Deathstroke. This could lead to intense fight scenes when his friends come to rescue him. For example, Batman and Robin might team up, using their detective skills to find Nightwing's location.
It could be Team Rocket. They are always up to no good and kidnapping a powerful Pokémon like Darkrai would be right up their alley.
Well, in some versions of 'Harry Potter gets a family fanfiction', Harry might be found by a family of magical creatures. For example, a family of centaurs could take him in. They would raise him with their own unique wisdom and values. This would give Harry a whole different perspective on the wizarding world and his place in it. He might learn their form of magic and use it to his advantage in the fight against dark forces.
Another plot could involve Peter being adopted by a family with their own set of secrets. Maybe they are part of a secret organization and they see potential in Peter's abilities. As a result, they train him in different ways that complement his Spider - Man skills.
One plot idea could be that Naruto somehow gets transported to the world where Darkrai exists. Darkrai, known for its ability to induce nightmares, might initially be seen as a threat. But Naruto, with his never - give - up attitude, tries to understand Darkrai. Maybe he discovers that Darkrai is being hunted by other powerful Pokémon and Naruto decides to protect it. This could lead to an alliance between Naruto and Darkrai against their common enemies.
In the 'darkrai gets kidnapped fanfiction', perhaps a group of trainers who want to control the power of the Legendary Pokémon Darkrai kidnapped it. They might be planning to force Darkrai to battle other Legendaries. This would create a lot of chaos in the Pokémon world as Darkrai is a very powerful and mysterious Pokémon.
One plot idea could be that Darkrai and Cresselia are forced to work together to save their shared dream realm from a new and powerful dark force. Their initial animosity due to their opposing natures gradually turns into respect and then something more. Another idea is that a spell goes wrong and they swap powers for a while, leading to humorous and also some deeply emotional moments as they try to understand each other's roles better.
In the 'Harry gets captured by Voldemort fanfiction', Harry could find an unexpected ally within Voldemort's ranks. Maybe a Death Eater who has a change of heart. This ally could help Harry escape or at least send messages to his friends. Another aspect could be that Voldemort performs some dark magic on Harry that gives him strange powers or visions. Harry then has to figure out how to use or overcome these new abilities while still being held captive. It could also be that the wizarding world outside is in chaos due to Harry's capture and different factions start to emerge, some wanting to negotiate with Voldemort for Harry's release and others wanting to go to war immediately.
Well, if Ash gets Darkrai as a starter, he would have a really powerful Pokémon right from the start. Darkrai is known for its ability to induce nightmares and has strong dark - type moves. Ash could use it to quickly gain an edge in battles against other trainers. Maybe he would face some challenges too, like dealing with people who are afraid of Darkrai because of its spooky reputation.