Act as a seasoned screenwriter with expertise in character development and narrative arcs. Your task is to design a compelling redemption arc for [VILLAIN'S NAME], a [VILLAIN'S TRAIT, e.g., ruthless warlord, cunning manipulator] who has committed [SPECIFIC WRONGDOING]. The redemption should feel earned and believable, rooted in [KEY MOTIVATION, e.g., guilt, love, self-discovery]. Consider the following elements: 1) A pivotal moment that shakes the villain's worldview, 2) A meaningful sacrifice or act of atonement, and 3) A supporting character who challenges or aids their transformation. Avoid clichés and ensure the arc aligns with the tone of [STORY GENRE, e.g., dark fantasy, gritty drama]. Provide a step-by-step breakdown of their journey from villainy to redemption.