After the Purple-Striped Leech was severed by Fang Bai's three continuous slashes, the remaining three pieces fell into the lakebed mud, with the part near its head floating in the water, wriggling slowly.
Within just a few breaths, the wriggling body of the Purple-Striped Leech stopped bleeding, the wounds healed, and it began to rapidly grow at a speed visible to the naked eye.
The Purple-Striped Leech's powerful self-healing ability was evident from this.
However, Fang Bai had seen countless spirit beasts in his past life, many of which had self-healing abilities even stronger than the Purple-Striped Leech. As such, he wasn't surprised.
The reason Fang Bai didn't immediately eliminate the Purple-Striped Leech was that he wanted to use the dense spiritual energy and strong venom in its purple blood to continue tempering the Blood-Drinking Mad Blade, thereby enhancing its grade and power.