One interesting concept could be summoning servants from different time periods and seeing how they interact with the DxD universe. For example, a servant from ancient Greece might have a unique perspective on the devils and angels in DxD. Another concept could be a servant with special powers that are not typically seen in the original series, like a servant who can manipulate time in a different way than what's shown in DxD. Also, the idea of a servant having a secret mission that ties into the overarching plot of DxD could make for an engaging fanfiction.
A great concept in Holy Grail DxD servant - summoning fanfiction is when a servant is summoned with a connection to one of the main characters' past. It could be a servant who knew their ancestor or was involved in an event that shaped the character's family history. This connection can add a layer of depth to the story, as the character has to deal with this newfound link through the summoned servant. It can also bring out hidden aspects of the character's personality and abilities as they interact with the servant.
A fanfiction could also focus on a single character from either DxD or FGO. Let's say a FGO master who is a huge fan of DxD. They might try to incorporate elements from DxD into their servant summoning ritual. They could decorate the summoning circle with symbols related to DxD and chant incantations inspired by DxD magic. This might result in summoning a servant with a unique form or abilities, like a servant with a devil - like appearance or the ability to use DxD - style powers.
The summoned servants can change the story in many ways. For instance, if a powerful servant is summoned, they can tip the balance of power in battles. If it's a servant with great wisdom, they might offer advice that changes the course of a character's actions. They could also introduce new elements to the story, like a new type of magic or a different view on the existing power structure in the DxD world.
One interesting concept could be the exploration of how the Holy Grail's magic might interact with the existing magic in the Harry Potter universe. For example, it could be a source of power that Voldemort tries to obtain, leading to a whole new series of battles and plot twists.
One interesting concept is alternative Servant summonings. For example, seeing a different class for a well - known character like if King Arthur was summoned as a Caster instead of a Saber. Another concept could be different Masters, perhaps a non - traditional or more morally ambiguous Master. And then there are the alternate storylines that might change the location or rules of the Holy Grail War.
In a fanfiction scenario, the DxD Holy Grail could act as a catalyst for summoning rare or powerful servants in FGO. It might contain a power that can break the normal limitations of the FGO summoning system. This could lead to the summoning of servants that are not usually available in the regular FGO universe, such as servants from a parallel dimension related to DxD. The story could then revolve around the master's struggle to control these unusually powerful servants.
A popular one could be 'Holy Grail DxD: A New Adventure'. It takes the characters from DxD and puts them in a Holy Grail - themed scenario. The story often has unexpected twists and turns that keep readers engaged. For example, the way the characters' powers interact with the rules of the Holy Grail is really fascinating. It also delves deeper into the relationships between the characters, showing new sides to them.
One interesting concept could be new Servant classes. Maybe there are unique combinations of skills and abilities that are different from the original classes in the regular Fate series. For example, a Servant with a blend of Assassin and Caster abilities, which would make for very stealthy and magically powerful combat strategies.
Well, for one, it allows for new and creative storylines. Fans can see their favorite DxD characters in a different setting, like the Holy Grail War. It gives the opportunity to explore different character relationships and power dynamics. For instance, a character who is strong in the DxD world might face new challenges in the Holy Grail setting. Also, the Holy Grail often comes with its own set of rules and magic, which can be used to create really cool and unique plot devices. It's like a fresh take on the familiar DxD world.
One interesting concept could be the unique interactions between servants from different Fate series. For example, seeing how a heroic spirit from one era would react to another's fighting style or personality.
A Servant could be a famous inventor from history, like Nikola Tesla. His abilities could be related to electricity and innovation. He could create powerful electric fields or develop new weapons on the spot using his knowledge. Another unique Servant could be a mythical sea creature, like a Kraken. It could have the power to control water and summon other sea monsters to do its bidding.