What if the Sigil Prep class could manipulate the very fabric of reality? Imagine a campaign where players can alter the outcomes of significant events within the game, creating a ripple effect throughout the multiverse. How would this power impact their relationships, morality, and the overarching storyline?

In the context of our campaign, can a character's betrayal serve a greater narrative purpose, or does it simply disrupt the group dynamics? What circumstances would make such an action acceptable for both the player and the DM, and how can we ensure it enhances rather than detracts from the overall experience?