At the same time, the Heaven-and-Earth Grand Momentum within a six-mile radius surged all at once, converging on Ye Yun.
In an instant, Ye Yun shaped that gathered power into an invisible Heaven-and-Earth Prison, trapping the Spider Desolate Beast inside.
Sensing something wrong, the Spider Desolate Beast finally reacted. It thrashed its enormous body, trying to flee.
But the Heaven-and-Earth Prison held it fast. The Spider Desolate Beast could not move an inch.
A moment later, under the Spider Desolate Beast's terrified gaze, Ye Yun drove the Black Obsidian Sword straight into its head.
Even with a wasteland beast's formidable vitality, the Spider Desolate Beast died the instant Ye Yun pierced its skull.
Only after confirming its death did Ye Yun relax. He let out a slow breath.
Truthfully, he had been wound tight, afraid he would fail to kill it with that single strike.
The main reason Ye Yun had killed the Spider Desolate Beast so easily was that he had caught it by surprise.
While it was off guard, he had briefly pinned it down with the Heaven-and-Earth Prison, then pierced its skull with one sword thrust and ended its life.
Ye Yun quickly butchered the Spider Desolate Beast's carcass.
Besides its Wasteland Core, every wasteland beast had flesh and blood that were immensely valuable.
Eating wasteland beast flesh could strengthen a martial artist's vitality and gradually improve their aptitude for cultivation.
Of course, improving one's aptitude required eating it over a long period, and it only worked for those whose aptitude fell below the Spirit Body level.
For a martial artist with a Spirit Body like Ye Yun, wasteland beast flesh could only strengthen his vitality. It could not improve his aptitude.
Ye Yun looked at the Wasteland Core he had taken from the Spider Desolate Beast.