Episodes focusing on rival teams can enhance the narrative depth by providing additional context, backstory, and conflict to the overall story. By exploring the motivations, skills, and dynamics of rival teams, viewers can gain a deeper understanding of the world in which the story takes place. This can create tension, raise stakes, and add layers of complexity to the narrative, making the storyline more engaging and dynamic. Additionally, rival teams can serve as foils to the main characters, highlighting their strengths, weaknesses, and growth throughout the series. Ultimately, by incorporating rival teams into the narrative, the show can explore themes such as competition, teamwork, and personal growth, adding depth and richness to the overall story.