In many fanfictions, a plot point could be the exploration of the differences in their power sources. Superman's powers come from the sun, while Danny's are related to the Ghost Zone. This can lead to interesting scenarios where they either learn from each other or try to use the other's power source against them. Another common plot point is the reaction of the people around them. How do the citizens, Lois Lane, or Danny's friends react to this encounter between the two powerful beings?
One interesting plot point could be Danny's struggle to find a new power or technique to defeat Pariah Dark. Maybe he discovers an ancient artifact that gives him an edge. Another could be the exploration of Pariah Dark's backstory, like how he became so powerful and evil in the first place.
A common theme is the struggle between good and evil within Danny himself. Since Dark Danny is Danny's dark side personified, it's all about Danny facing his own inner demons. For example, in many fanfictions, Danny has to deal with the temptation to give in to the power that Dark Danny represents.
Well, it could be that Danny Phantom is angry because Superman's actions in a particular situation are causing problems in the ghost zone. Maybe Superman's heat vision accidentally disrupted some important ghostly energy source, and Danny, being the protector of the ghost zone, yells at him to be more careful.
It could also be that Superman underestimates Danny's powers. Danny has his own set of unique abilities as a half - ghost. When Superman dismisses him or tries to boss him around, Danny stands up for himself and tells Superman off. He might show Superman some of his cool ghost powers like intangibility and invisibility in a rather sassy way to prove that he's not someone to be pushed around.
One idea could be that Danny Phantom's ghost powers somehow interact with Superman's Kryptonian abilities in a strange way. Maybe their powers cross and create new, unexpected powers in both of them.
In 'Danny Phantom Son of Nightwing' fanfiction, a significant plot point is the integration of the two universes. Danny's discovery of his parentage as Nightwing's son is just the beginning. After that, he may face challenges in training to use new skills or powers. There could be a plotline where he tries to bring the two groups of heroes (from Danny Phantom and Nightwing's world) together to fight a common enemy. Additionally, his personal growth as he navigates between these two identities and tries to find his place in both worlds is a central aspect of the story. The way the fanfiction portrays his internal conflict and external battles makes for an engaging read.
A great plot point would be if they have to work together to reverse some sort of ghost - related disaster that Jack's inventions accidentally caused. Danny's powers and Jack's knowledge of technology could be the key to fixing it. And along the way, they grow closer as they overcome obstacles.
In many Danny Phantom singing fanfictions, there's a plot point where Danny's singing is somehow connected to his family heritage. Maybe his ancestors were also great singers or had a connection to music in the ghost world. This connection adds depth to his character and his relationship with his family. Also, when Danny's singing is used to break a curse in the Ghost Zone, it creates a very exciting and unique storyline.
In this fanfiction, it could be that Danny Phantom meets a Danny Phantom from a parallel fan - made story. At first, they don't trust each other. But as they learn more about each other's worlds, they realize that there are some common elements that are being threatened. It could be that a powerful ghost is trying to rewrite all the fanfic universes related to Danny Phantom. So, they must combine their strengths and knowledge to stop this from happening.
Another aspect could be the interactions between Danny and his friends while he's sick. His friends might be worried and try to take care of him in their own unique ways. For example, Tucker could bring over some high - tech gadgets to monitor Danny's condition, and Sam could make sure he's eating healthy. Also, the ghosts might take advantage of Danny being sick and weak to cause more trouble in Amity Park.