If one universe has significantly stronger characters than the other, you'll need to find a way to balance them so one doesn't completely overshadow the other.

The crossover is a fundamental move used to change direction and beat a defender. The Between-the-Legs Crossover | Basketball

A "Crossover" (CUV) is often confused with an SUV, but the main difference is the .

This design gives you the high seating position and cargo space of an SUV with the better fuel efficiency and smoother handling of a sedan.

A crossover brings characters or settings from separate universes into one story.

If posting online (like on AO3 or Reddit), always tag your story clearly as a crossover so the right fans can find it. 🏀 Basketball: Mastering the Dribble