Another idea is that Greninja gets exposed to some kind of meta - human - creating substance in the DC universe and gains new powers. It could then join the Teen Titans, sharing its unique Pokémon abilities with the group. It would be interesting to see how Greninja interacts with characters like Robin, Starfire, and Cyborg, and how it uses its powers in battles against the Titans' enemies.
Archie Comics and DC are not affiliated. DC has its own universe of superheroes and story arcs, while Archie Comics focuses on the adventures of Archie and his friends in a more lighthearted and teenage-oriented setting.
Sure is. Sandman has a prominent place in DC Comics. It's known for its unique artistic style and deep, philosophical themes that have added depth to the DC comic book landscape.
Supernatural is not affiliated with DC Comics. It has its own unique characters, settings, and mythos that are independent of the DC universe. DC Comics has its own roster of heroes and villains, but Supernatural doesn't fall into that category.