Gwen could be a great addition. She could be the voice of reason when Ben and Vilgax are at odds or she could have her own powers play a role in the story. Grandpa Max is also a good choice. His wisdom and experience could add depth to the fanfiction, especially when dealing with Vilgax. Another character could be Kevin. His ability to absorb energy could create some interesting interactions with Vilgax and also provide a different kind of friendship or rivalry dynamic with Ben.
Power struggle is a common theme. Vilgax is always after more power and often clashes with Ben or other powerful beings in the fanfics. Another theme is revenge. Since Vilgax has been defeated by Ben many times, he often seeks revenge in these stories.
One popular 'Ben 10 Vilgax fanfic' could be 'Vilgax's Redemption'. It shows a different side of Vilgax where he tries to change his ways. Another one might be 'Vilgax vs. the New Aliens' which has some great action scenes with Vilgax facing off against newly introduced aliens in the Ben 10 universe.
Well, a plot could be that Vilgax gets amnesia and Ben has to decide whether to take advantage of this or help him. This could lead to a whole new dynamic between them as Ben tries to figure out what to do. Also, a fanfiction could explore what would happen if Vilgax became a mentor to Ben in a strange, alternate universe. They could train together and Vilgax could pass on some of his knowledge, but also try to manipulate Ben for his own ends. Or, perhaps a story where Vilgax and Ben are both stranded on a strange planet and have to work together to survive, all while dealing with their mutual distrust.
One possible scenario in 'Ben 10 meets the Justice League fanfiction' is that a new villain emerges who has the power to nullify the powers of the Justice League members. Ben 10, with his Omnitrix, which has a vast array of alien powers, becomes the key to defeating this villain. His alien forms like Heatblast could provide the necessary firepower against the villain's cold - based defenses, while Four Arms could take on the villain in hand - to - hand combat if needed. The fanfiction could explore how they combine their strategies and powers to emerge victorious.
A 'ben 10 meets iron man fanfiction' could have a really interesting plot. Ben, with his impulsive and young - hero nature, could clash with Iron Man's more calculated and experienced approach at first. However, as they get to know each other, they might find common ground. For example, they both have a strong sense of justice and a desire to protect the innocent. They could team up to take on a powerful enemy that neither could defeat alone. Ben could use his alien transformations to provide brute force and unique abilities, while Iron Man uses his advanced weaponry and strategic thinking. Their combined efforts would make for an exciting and action - packed story.
Obviously, Link and Ben Drowned are the main characters. Link is the heroic character from the Zelda series, known for his bravery and combat skills. Ben Drowned is a creepy and often malevolent character.
It could be about Rook having some sort of adventure while meeting Ben's babies. Maybe he helps protect them from a threat or teaches them some unique skills.
The main characters are Rook and Ben's babies. Rook, who might be from a different background or with different abilities, is the one who is going to interact with the babies. The babies, on the other hand, could have inherited some of Ben's traits. Their interactions will form the core of the story. For instance, if Ben has superpowers and the babies show some signs of those powers, Rook will have to deal with that while getting to know them.
One interesting plotline could be Ben Drowned trying to manipulate Link for his own dark purposes. Maybe he wants Link to help him access some hidden power in the Zelda universe.