One idea could be a story where the Grand Priest and Zeno are on a journey through the universes to understand the different cultures. They could encounter various powerful beings and have to make decisions about how to handle them. For example, they might come across a universe where the inhabitants are facing a great danger and they decide to use their powers to help.
I haven't actually read this fanfic yet. But if it's about Zeno and the Grand Priest, it could be really interesting. Maybe it explores their relationship in a whole new way, like how they interact behind the scenes in the multiverse. It could also introduce some unique plot twists based on their powerful positions in the Dragon Ball universe.
In a straight - up power comparison, Goku has the ability to reach extremely high power levels that can destroy planets. But Naruto has the power of the Nine - Tailed Fox and his Sage of Six Paths mode which also gives him immense power. If the fight takes place in Naruto's world, Naruto could use the environment to his advantage, like summoning giant toads or using the terrain. On the other hand, if it's in a more open space like in Goku's battles, Goku could use his flight and long - range attacks more effectively. So it's hard to say who would win definitively.
A plot might involve Goku accidentally stumbling into Zeno's realm. Zeno, who has only seen beings either fear or revere him, is amused by Goku's lack of fear and his eagerness to spar. So, they start a friendly sparring match that has the potential to either create chaos in the multiverse if they go all out or lead to a new understanding between the two most powerful beings in the Dragon Ball universe.
To write a Grand Priest x Zeno fanfic, start by thinking about their relationship. Are they just colleagues or do they have a deeper bond? You can base your story on exploring that. When writing the dialogue, make sure it reflects their characters. The Grand Priest might speak in a very refined and respectful way, while Zeno's dialogue can be more straightforward and sometimes naive. Also, don't forget to add some unique elements to the story, like new characters or locations that fit within the Dragon Ball universe.
An interesting interaction could be when Goku, with his straightforward and fearless nature, asks Zeno if he can fight him. Zeno, who is used to being unchallenged, is both surprised and entertained by Goku's boldness.
In a one - on - one fight between One Punch Man (Saitama) and Goku, it's really tough to say. Saitama is known for being able to defeat any opponent with just one punch. However, Goku has a vast array of powerful forms and techniques. If Saitama landed his first punch, he'd win instantly. But Goku's speed and ability to constantly power up could potentially give him an edge. He could keep dodging Saitama's punches until he found a way to overpower him. It really depends on how the fight is set up in the fanfiction.
One common theme could be power dynamics. Since both the Grand Priest and Zeno are extremely powerful in the Dragon Ball universe, exploring how their powers interact or contrast can be interesting. For example, how the Grand Priest's wisdom and Zeno's near - omnipotent power play off each other.
Power and hierarchy could be a major theme. Since Zeno is the top - most in the power structure and the Grand Priest serves him, it might explore how that dynamic works. For example, loyalty and obedience.