I think Salamence would be quite challenging. It's a very powerful and aggressive Pokemon. Ash would need to have a really strong team to weaken it first. Also, its flying ability gives it an advantage in battle, making it hard for Ash to land a final blow for the catch.
One interesting Pokemon pseudo - legendary fanfiction could be about a trainer's journey to catch all the pseudo - legendaries. They might face unique challenges like rival trainers specifically targeting these powerful Pokemon.
You need to create a plot. It could be about a trainer who discovers a hidden power within a pseudo - legendary Pokemon. Develop your characters well. Give them distinct personalities. If your trainer is a girl, she could be brave but also have a soft side for her Pokemon. Outline the story, including the beginning, middle, and end. Maybe start with the trainer finding an injured pseudo - legendary and then build up to a big battle at the end.
Well, a great plot might be that Ash enters a special tournament where the grand prize is a chance to catch a Pseudo - Legendary Pokemon. He has to battle tough trainers along the way. Also, it could be that a Pseudo - Legendary Pokemon has some sort of unique ability that Ash discovers he needs to help solve a big problem in the Pokemon world. Maybe it can control a powerful energy source, and Ash must earn its trust to use that power for good.
There's also 'Legendary Pokemon: The Forbidden TF'. This fanfiction delves into a darker side of pokemon transformation. It involves an ancient spell that forces legendary pokemon to change forms, leading to a series of events that endanger the pokemon world. It's really exciting to read as it unfolds the mystery behind the transformation.
I'm not sure specifically what this fanfiction is about as there could be many different interpretations. It might be about a character named Ash who has an encounter or relationship with a pseudo - legendary Pokémon in a fictional story created by a fan.
I really like the fanfic 'The Legendary's New Form'. It shows how the legendary pokemon adapt to their human forms in a modern human society. It has some really cool action scenes and the relationships between the characters, both human and pokemon - turned - human, are very engaging.
A 'pseudo master pokemon fanfic' might center around a character who is on the path to becoming a master but has some unorthodox methods. They could be using new or strange strategies to train their Pokemon. It could also involve a story where the character challenges the traditional idea of what a Pokemon master is, like focusing more on the bond with Pokemon rather than winning battles.
I'm not sure specifically as there could be many different interpretations. It might be about Ash from the Pokémon world having a Pokémon that is considered a pseudo - legendary as his starter Pokémon. Maybe it details his adventures with this special starter in a unique and creative way that diverges from the normal Pokémon storylines.
Articuno, Zapdos, and Moltres are quite common. Their elemental powers and the mystery surrounding them make for great fanfiction material. Ash might encounter them during his travels and have to either help them or face off against them in some way.