What are some interesting ideas for a 'worm x fate fanfic'?

Well, a cool plot for a 'Fairy Tail x Fate fanfic' might be centered around a powerful magical artifact that exists in both universes. The characters from both series start to search for it, and during their journey, they learn about the similarities and differences in their magic systems. Maybe some of the Fairy Tail wizards get mistaken for Servants at first and have to prove their true identity while also dealing with the various factions in the Fate world.

One idea could be Salem's reaction to the powers and technology in the Worm universe. Maybe she tries to use some of the parahuman abilities or advanced tech to further her own goals in the RWBY world.

Perhaps a fanfic where the Patriots from Metal Gear somehow gain knowledge of the Worm universe and attempt to control it. They could start by kidnapping certain parahumans and trying to weaponize their powers. Meanwhile, the heroes in the Worm world would have to figure out how to combat an enemy that is so technologically advanced and has such a complex understanding of control and manipulation.

Well, you could write a fanfic about Attila's relationships. For example, how he forms alliances or rivalries with different heroes or villains in the Fate world. You might also consider a story where Attila discovers a new power or ability and how that changes his role and interactions within the Fate storyline.

Another interesting concept is to create an alternate ending. Maybe the two factions end up working together against a greater threat that was hidden all along, like an ancient evil that awakens during their battle.

A great plot for a Fate Tiamat fanfic could be a scenario where Tiamat tries to adapt to the modern world within the Fate universe. She has to deal with human culture, technology, and the other strange things she never encountered before. This could lead to some comical as well as deep and meaningful interactions with the other characters.

First, you should do some research on both universes. Know the characters, the rules, and the settings of 'Worm' and 'Fate'. For example, understand how powers work in 'Worm' and the mechanics of the Grail War in 'Fate'.

Well, you could focus on the concept of fate itself within the 'fate in time fanfic'. How about a story where the characters are aware of their fates but struggle against them? They could try to rewrite their destinies, which would lead to all sorts of interesting conflicts. Or perhaps a plot where fate is a sentient force that plays games with the characters, constantly changing the rules of time.

A good plot for a Brynhildr Fate fanfic could be a time - travel story. Brynhildr could be sent back in time to a crucial moment in her own history. She could then have the chance to change things that she regretted in her past. Or, you could write about Brynhildr falling in love with a character who is not from her original story. This would create a lot of interesting drama as she tries to balance her new feelings with her duties as a Servant. Also, a story where Brynhildr has to train a new and inexperienced Servant could be quite engaging.

Another idea is to create a story where the rules of the Grail War are changed. For instance, instead of seven Servants, there are only three, and they have to complete different tasks to win. This would completely change the dynamics of the story and lead to new and exciting interactions between the characters.