I have a composite mirror

In the thirteenth year of the Great Qing Republic, the land was shrouded in darkness. Foreign warships bombarded the nation's borders, while warlords wreaked havoc on the people. Even more so, demons rose up amidst the chaos—mountain goblins devoured human hearts, water ghosts dragged corpses, and fox spirits sucked away souls. This was an era where humans ate humans, demons ate humans, and the powerful and demons shared the spoils. Gu Shenyan, in this life, was originally the eldest son of a martial arts school. However, due to a congenital illness, he was unable to inherit the family business and could only watch helplessly as outsiders usurped his place. But heaven never closes all doors. Upon awakening, he comprehended the wondrous principle of the Three Elements Unifying into One: [Snake Embryo (Main) + Pig Dragon Spine (Secondary) + Centipede Dragon Gallbladder (Secondary) → Dragon Blood (Treasured Item)] [Controlling water and connecting with marshes, his physical body transformed into a dragon, possessing the power to overturn rivers and seas, transcending the mortal realm and entering the spiritual realm]... [Peaches of Immortality x3 → Primordial Water Peaches of Immortality (Immortal Item)] [Ripes once every three thousand years, granting health; ripens once every six thousand years, granting immortality; ripens once every nine thousand years, granting longevity equal to heaven and earth]... [Jade Disc of Creation (Fragment) x3 → Primordial Purple Qi (???)] [A wisp of Primordial Purple Qi is the foundation for becoming a saint] "All beings suffer, so I will save them all; Heaven and Earth are ruthless, therefore I will devour them!"