Longevity Martial Arts: I have a black water snake clone

"Mine, mine, it's all mine. I'll take a bite, I, I, I'll take a bite!!!"
After waking up, Hong Yuan traveled to a chaotic world where demons made troubles and human lives were worthless.
His aptitude is extremely poor, and his cultivation speed is progressing at a snail's pace. Even if he has a proficiency panel, it won't help. In the end of his life, his highest achievement may be just an outside deacon.
Fortunately, a monster named Xuanshui Snake was cloned.
Hong Yuan discovered that as long as his Xuanshuisnake avatar devours and grows, his own body's [life] and [qualification] can increase indefinitely!
At the same time, the breakthrough of the main body [gongfa] will feed back the natural strength to the clone of the Xuanshui snake.
The second-level monster Xuanshui Snake: a strange beast that can slightly manipulate the water flow, and can set off turbulent waves in the river.
Tier 4 Monster Beast Ice Armored Python: Possesses strong defense power and can create a world of ice and snow in the scorching summer.
...
Mountains and rivers change, time changes.
The Xuanshui snake avatar consumed one peerless genius after another, while Hong Yuan, who was hiding in a secluded place, watched the situation with a smile.