In certain comic arcs, Heimdall tragically meets his end. The circumstances and reasons for his death can vary depending on the specific comic series and plot.
For this 'god of war atreus crossover fanfiction', characters like Beowulf would be a great crossover. Beowulf is a heroic figure in Anglo - Saxon literature, and his encounter with Atreus could be a clash of two different heroic cultures. Another one is Aragorn from The Lord of the Rings. Aragorn's leadership and Atreus' growth as a young hero could make for an engaging story. And don't forget about Dante from Devil May Cry. Dante's flamboyant fighting style and Atreus' more reserved Norse combat style could create a really fun dynamic in a crossover.
A possible plot for an Atreus and Percy fanfic could be centered around a prophecy. The prophecy states that only the combined strength of a Norse and a Greek hero can stop an ancient evil from awakening. Atreus and Percy are brought together by this prophecy. At first, they are skeptical of each other because of their different backgrounds and ways of doing things. However, as they start to face the challenges related to the prophecy, such as deciphering ancient texts and fighting off minions of the evil, they gradually learn to trust and rely on each other. In the end, they succeed in preventing the evil from rising, and their friendship becomes a legend in both their worlds.
Another theme is the exploration of power dynamics. Heimdall has his own powers and responsibilities, and when paired with an OC, it can create an interesting dynamic. Sometimes the OC might be in awe of Heimdall's power, or they might challenge him, leading to a more complex relationship.
In Heimdall x Reader fanfiction, a common theme is the struggle against fate. Heimdall may know the reader's fate, and the reader may try to change it, which creates conflict and drama. Another theme is the idea of seeing and being seen. Heimdall's all - seeing ability makes this a central aspect of the relationship. He sees the reader in a way no one else can, and the reader may strive to understand him in return. Additionally, the theme of sacrifice can be present. Heimdall might have to sacrifice something for the reader, or vice versa, as their relationship deepens.