100,000 rats might seem like a lot, but in reality, the numbers quickly dwindled down in the cave. Lin Xuan only needed one earthquake to cause the entire cave to collapse, and there would be no living creatures left. If not for the fact that he wanted to kill all the rats, Lin Xuan would have done that long ago.
That's right, even if there was only one rat left, this race could rise again!
All his perception skills were fully activated. With all of it activated, he could detect life and strength. Under the multi-faceted approach, not a single rat could escape Lin Xuan's hunt.
There weren't many earth-rank rats, and Lin Xuan didn't encounter any along the way. If he encountered normal rats, a small wind blade would be enough to kill them. The yellow-rank ones were useless as well, and he used a simple slash to kill them. The mystic-rank ones were a little tougher, so he needed to use his finger gun-embroidery needle to kill them.