A plot might be that Suicune is being hunted by an evil organization. Ash discovers this and decides to protect Suicune. He teams up with his existing Pokémon and some new allies he meets during this adventure. They fight off the evil organization's attempts to capture Suicune. In the end, Suicune is so impressed by Ash's selfless protection that it offers to be caught by Ash. After that, Ash has to deal with the new - found fame and also the responsibility of having a Legendary Pokémon. There could be sub - plots about training Suicune, and how it interacts with Ash's other Pokémon, as well as how it affects Ash's standing in the Pokémon world.
Well, the plot could start with Ash hearing rumors about Suicune's appearance in a certain region. He sets out on a journey to find it. Along the way, he faces many challenges and meets new friends and Pokémon. When he finally encounters Suicune, it initially resists being caught. But Ash shows his determination and his understanding of Pokémon. He battles Suicune in a friendly way, not to defeat it but to gain its respect. Through his actions, Suicune realizes that Ash is a worthy trainer and allows itself to be caught. Then the story could continue with how Ash and his team adapt to having a Legendary Pokémon like Suicune around, and the new adventures they embark on together.
There could be. Fanfic writers often come up with all sorts of creative ideas. Ash is a very popular character in the Pokémon franchise, and Suicune is a very cool and mysterious Legendary Pokémon. Combining them in a story where Ash catches Suicune can make for an exciting read. You can try searching on fanfic platforms like FanFiction.net or Archive of Our Own to see if such a story exists.
Maybe in the fanfic, Ash hears about a powerful Mightyena causing trouble in a certain area. He goes to investigate and discovers that the Mightyena is actually being controlled by an evil force. Ash battles the controlling force and after freeing the Mightyena, it becomes his ally.
Well, it could be about Ash traveling to a remote area, like a hidden forest or a mysterious island where the rare pokemon is rumored to live. He might face many challenges on his way there, like tough terrains or other aggressive pokemon. Then, when he finally encounters the rare pokemon, it could be a really intense battle where he has to use all his skills and knowledge of pokemon to catch it.
Maybe Ash discovers Yveltal in a damaged state due to some evil team's actions. He decides to help it and in the process, forms a bond with Yveltal. Eventually, Yveltal allows Ash to catch it.
Well, the plot could be as simple as Ash coming across a wild Dragonite that is injured. He helps it recover, and during the process, a bond forms between them. Eventually, Dragonite decides to join Ash's team. It's a classic 'help and befriend' kind of plot.
One possible plot could be that Ash meets a lost and injured Suicune. He decides to help it recover, and during this process, they form a deep bond. The fanfiction could then focus on their adventures together as they face various challenges in the Pokémon world.
Perhaps Mew and Mewtwo are in a fight against an evil force that threatens the Pokémon world. Ash arrives at the scene and manages to communicate with them. He offers his help and through their combined efforts, they defeat the evil. As a result, Mew and Mewtwo see Ash as a true hero and allow him to catch them, leading to a new chapter in Ash's Pokémon journey.
Ash could catch Latias in a place full of ancient ruins. Latias might be guarding some sort of Pokemon relic there. Ash shows respect for the place and Latias' role. This makes Latias interested in him. Eventually, Ash catches Latias and they go on to discover more about the relic's power together.
One possible plot could be that Ash hears rumors of Rayquaza's appearance in a far - off region. He sets out on a journey with his Pokémon friends. Along the way, he has to face various challenges and other trainers who also want to catch Rayquaza. Eventually, he uses his unique bond with his Pokémon and his strategic skills to outwit Rayquaza and catch it.
One possibility is that Ash stumbles upon Meltan in an unexpected place, like a hidden grove. He uses his Pokémon knowledge and skills to gain Meltan's trust and catches it. Maybe he uses Pikachu to show Meltan that they can be friends and partners. This could lead to new adventures as Ash trains Meltan and discovers its unique abilities.