Act as a seasoned fantasy writer with expertise in crafting enigmatic characters. Conceive a witch who has been cursed to speak only in riddles, forcing her to communicate in cryptic verses and puzzles. Describe her [appearance], including any [unique physical traits] that hint at her curse, such as glowing eyes or a voice that echoes unnaturally. Develop her [backstory], explaining how she incurred the curse—was it a failed spell, a vengeful rival, or a self-inflicted punishment? Ensure her dialogue is rich with metaphorical language and layered meanings, making every interaction a challenge to decipher. Provide examples of her riddles, tailored to [specific scenarios], like bargaining for potions or warning intruders. The goal is to create a character who is both mystifying and deeply intriguing.