One possible storyline could be that Spike's death has a profound impact on Twilight Sparkle, leading her into a deep depression. She might struggle to carry on with her studies and magic without his constant support.
It could be that Spike sacrifices himself to save Equestria from a great evil. His death then becomes a symbol of heroism. The ponies might hold a grand memorial for him, and his memory could inspire a new generation of ponies to be brave and selfless. Twilight in particular might be driven to create a library in his honor, filled with all the knowledge they've gained from their adventures together, so that Spike's spirit of curiosity lives on.
One possible storyline could be Spike discovers a long - lost magic spell that is connected to Celestia's past. He embarks on a journey to find out more about it and ends up having to team up with Celestia. Along the way, they face various challenges and learn more about each other's strengths and weaknesses.
One possibility could be a story where Spike sacrifices himself to save his friends. Maybe there's a great danger in Equestria, like a powerful dark magic that only Spike can stop because of his unique dragon abilities. He might use his fire to counter the dark magic but in the process, exhausts all his energy and dies. His friends are left to mourn his loss but also remember him as a hero.
Maybe Spike tries to prove himself by joining in on a dangerous adventure with the Mane 6. They are exploring an old, abandoned castle filled with traps. Spike, being smaller and not as experienced as the others, steps on a pressure - sensitive tile that releases a volley of arrows. He gets hurt as some of the arrows graze his body, and then the group has to figure out how to treat his wounds while still making their way through the dangerous castle.
Twilight Sparkle would definitely be one of the main characters affected. As Spike was her assistant and friend, his death would leave a huge void in her life.
A good way is to focus on the relationships Spike had. For example, show how Twilight, his closest friend, is completely shattered by his death. Describe her days filled with sorrow, looking at all the things they used to do together. It makes the readers feel the impact through her pain.
One possible plotline could be that Luna sacrifices herself to save Equestria from a powerful and ancient evil. She might use all of her magic and strength to defeat the foe, but in the process, it drains her life force completely.
Another theme might be friendship and forgiveness. His friends would probably have to deal with his greed and decide whether to forgive him and help him change.
One possible plot could be that Rarity contracts a rare and incurable disease in Equestria. Her friends, like Twilight Sparkle, would try everything to find a cure. But in the end, she passes away peacefully, leaving behind a legacy of her beautiful creations. This could show how the other ponies deal with grief and remember her through her works.
Spike MLP Fanfic is a type of fan - made literature that focuses on Spike in the context of My Little Pony. Fans write these stories for a variety of reasons. Some might be huge Spike fans and want to give him more spotlight. Others might want to explore different storylines that could have happened in the MLP world involving Spike. It can range from humorous tales where Spike gets into comical situations to more serious and emotional stories about his place in Equestria and his relationships with those around him.
It could be that Spike is kidnapped by a new, unknown threat from outside of Equestria. This new enemy might see Spike as a key to unlocking some sort of powerful magic in Equestria. Pinkie Pie could use her intuition to find out where Spike is, while Rarity might use her connections to get information on this new enemy.