Act as a seasoned fantasy writer with expertise in character development. Invent a shapeshifter who struggles with uncontrollable transformations. Describe their [AGE], [ORIGIN], and [CURRENT STRUGGLES] in vivid detail. How do their unpredictable changes affect their daily life, relationships, and sense of identity? What triggers these transformations—[EMOTIONS], [ENVIRONMENTAL FACTORS], or [UNKNOWN FORCES]? Craft a backstory explaining how they acquired this curse or gift, and explore their emotional turmoil. Include at least one pivotal moment where their lack of control led to a dramatic consequence. The tone should be [MYSTERIOUS], [TRAGIC], or [HOPEFUL], depending on your creative direction.