Waste Spirit Root Garbage? but If I Devour It, I Will Become Stronger!

(Decisive in killing, unsystematic, Gou, brainy, thunderous means, golden finger, Chuanxuan) [The useless person Jiang Wuji possesses a spiritual root, and his spiritual power leaks out faster than he can refine it. It is a hundred times more useless than the most rubbish miscellaneous spiritual root. I thought I could only be a sweeper in the Xuanyue Sect in this life, but I accidentally got the ancient immortal weapon, the Heaven-Eating Cauldron! The Heaven-Eating Cauldron and the Spirit-Eating Root are perfectly integrated, turning the waste Spirit-Eating Root into the Spirit-Eating Immortal Root, which can directly seize other people's spiritual roots! You can also restore your strength by devouring souls. The more souls you devoured, the stronger your ability... Turning stones into gold, turning waste into treasure, changing spiritual roots, and improving cultivation are just the basics. Turning the world around, reversing life and death, and living the same life as heaven and earth are not out of the question! This time, I, Jiang Wuji, will never let anyone step on me!