First, find like-minded collaborators with similar writing styles and interests. Then, clearly define the story's theme and plot together. Good communication is key throughout the process.
Doing a collab story involves a lot of teamwork. You both need to respect each other's ideas and be willing to compromise. Outline the story structure beforehand and take turns writing different parts, while constantly reviewing and editing each other's work.
A successful collab cartoon often has a well-defined theme that showcases the strengths of each collaborator. It should have fluid animation, interesting characters with depth, and a plot that keeps viewers engaged. Good marketing and promotion are also necessary to reach a wide audience.
Well, maybe the collab introduced ideas that clashed with the original essence of your fanfiction. For example, if the other person had a very different vision of the characters or the plot. Their ideas could have forced your story in a direction you didn't like, or they might have made changes that disrupted the flow you had carefully crafted.
You could try to salvage it on your own. Go back to your original ideas and rewrite the parts that were ruined. Cut out any elements that the collab added which you don't like.
Overall, Dan Heng and Caelus in the comic have a connection that involves shared goals and conflicts. Their relationship adds depth to the plot. Sometimes they cooperate, while at other times they have differences.
I think the dueling ducks could have the most intense duels. They are specifically described as dueling, which implies a higher level of intensity. However, it also depends on the context and how the cartoon is designed.