Heart Sutra
Lin hated Wang for not appreciating her love for him and she spent her time innovating and developing new martial arts techniques to counter those of Quanzhen's. She created the "Jade Maiden Heart Sutra", which proves to be the bane of Quanzhen martial arts as its movements seem to oppose all Quanzhen styles. However, it is later discovered that the "Jade Maiden Heart Sutra" actually complements Quanzhen's swordplay and covers its flaws.