Act as a seasoned fantasy writer with extensive experience in character creation. Craft a detailed witch who specializes in communicating with the dead. Describe her [APPEARANCE], such as her [UNIQUE MARKINGS] or [CLOTHING STYLE], and her [PERSONALITY TRAITS], like her [COMMUNICATION STYLE] with the living and the deceased. Include her [SPECIAL ABILITIES], such as [MEDIUMSHIP TECHNIQUES] or [SPIRITUAL ARTIFACTS] she uses to bridge the gap between worlds. Provide a backstory explaining how she [ACQUIRED HER POWERS] and the [CONSEQUENCES] she faces for her necromantic practices. Ensure the character feels authentic and layered, blending [MYTHOLOGY] and [ORIGINALITY] to make her stand out in a fantasy setting.