It could be a legendary Pokémon in disguise. Legendary Pokémon sometimes interact with trainers in mysterious ways. This one could have chosen Ash to receive the Dratini egg as part of some grand plan to help Ash become an even greater trainer and perhaps save the Pokémon world from a future threat.
Well, in the 'Ash is given a Dratini egg fanfiction', perhaps Ash will form a really strong bond with the Dratini even before it hatches. He could start to feel a sense of responsibility like never before. And when the Dratini finally hatches, it could be a really powerful Pokémon that helps Ash in his future battles. He might also meet some new friends or trainers who are interested in his Dratini egg.
His friends like Pikachu for sure. Pikachu would be there by Ash's side, probably as curious as Ash about the Dratini egg. Brock might also be involved. He could use his knowledge of Pokémon to give Ash some tips on taking care of the egg.
Well, in the fanfiction, Ash might start by being super excited about getting the Dratini egg. He could be very protective of it, constantly checking on it and making sure it's in a safe place. Maybe he'd research all about how to take care of a Dratini egg, like the ideal temperature and humidity.
Maybe it's a legendary Pokemon in disguise. In some fanfictions, legendary Pokemon often play important roles. It could give Ash the egg as a test or because it senses that Ash has a pure heart. Another possibility is that it could be a young trainer who can't take care of the egg anymore and trusts Ash to do a good job.
Dratini's character could be developed by showing its initial shyness. Since it's a relatively rare and often timid Pokemon, it might be scared of Ash at first. But as Ash shows kindness, Dratini could start to open up. Maybe it would show its playfulness when it gets more comfortable around Ash and the other Pokemon in his team.
There are many great authors. Some might be known within specific fanfiction communities. One author could be someone who goes by the username 'PokeFan123'. Their stories often focus on the emotional bond between Ash and Dratini, and they write in a very engaging style.
He might meet an old Pokémon expert who gives him tips on hatching the egg.
The plot might involve Ash's Dratini evolving quickly due to their unique connection. It could also have elements of Ash trying to prove that Dratini can be a very powerful Pokémon from the start. He might enter it into Pokémon contests and battles, showing off its unique moves and abilities.
In the fanfiction, perhaps Ash catches Dratini during a quest. He hears rumors about a rare Dratini in a certain area. He goes there and finds Dratini being chased by some other Pokemon. Ash steps in to protect it and earns Dratini's trust. The story could then focus on their adventures together, exploring new regions and facing tough opponents with Dratini by his side.
One popular story could be about Ash and Dratini's adventure in an uncharted forest. They might encounter rare Pokémon and have to work together to overcome challenges. In this story, Dratini could start evolving during a tough battle, which adds an exciting element.