I think Rin is quite popular in Fate Stay Night time travel fanfiction. Her magical abilities and her relationship with other characters can be explored in new ways through time travel. Another popular character is Illya. Her unique backstory and connection to the Grail can be greatly enhanced with time - travel plots. Also, Gilgamesh is a favorite. His over - the - top personality and his ancient knowledge can create really interesting scenarios when combined with time travel.
Saber is often a popular choice. Her noble and powerful image makes her adaptable to many different crossover scenarios. Archer is also a favorite. His cool and mysterious demeanor can add a lot of intrigue in crossovers. And Rin Tohsaka, with her intelligence and magical abilities, can easily be incorporated into various crossovers, like a crossover with a scientific - based universe where she uses her smarts to figure out new things.
Saber is definitely one of the most popular. Her noble and complex character makes her a favorite for many fanfic writers. They often explore her relationship with different Masters in more depth or put her in different battle scenarios. Archer is also popular. His snarky attitude and powerful abilities give a lot of room for interesting storylines.
Merlin himself is often a very popular character. His powerful magic and mysterious nature make him a focal point. Writers like to explore his abilities further and put him in different scenarios.
Ruby Rose is often a popular choice. Her energetic and positive personality combined with her powerful combat skills make her an interesting addition to Fate Stay Night scenarios. Also, Saber from Fate Stay Night is frequently used. Her noble and strong - willed nature can create great interactions with RWBY characters.
One interesting concept is how characters' fates might change if they had prior knowledge from time travel. For example, Shirou might be able to prevent some of the tragedies that occur in the original story. Another concept could be the interaction between different time periods' versions of the same character, like how a past Archer could meet a present - day Shirou and how their ideologies would clash or align.
One common theme is redemption. Since Shirou can go back in time, he often tries to fix his past mistakes or prevent tragedies that occurred in the original story, seeking redemption for himself and others.
Rin Tohsaka can't be ignored either. She is intelligent and has her own set of powerful magic. In the gamer si fanfiction, she could be the one who helps the self - insert character understand the rules of the game - like world. Her relationship with other characters can also be developed in new and interesting ways, like forming a guild or a party with them.
Saber is definitely one of the most popular. Her noble and complex personality, along with her powerful abilities, make her a great subject. Archer is also a favorite. His mysterious past and his internal conflict between his ideals and reality are very interesting to explore in fanfiction. And of course, Shirou, as the main protagonist, is often written about. His growth throughout the story and his relationships with other characters are rich areas for fanfic writers to explore.
Well, 'Time - Twisted Shirou' is another good one. In this fanfiction, Shirou's time travel is caused by a strange magic spell gone wrong. As he travels through time, he discovers secrets about the Grail War and his own powers that he never knew before. It has a lot of action and some really cool plot twists.
Saber is really popular. She's a strong and noble Servant with a cool design. Her relationship with Shirou is also a big draw for fans. Archer is popular too. His mysterious past and his powerful abilities make him interesting.