492 Chapter 251: The Death of Zhang Tu, Half-cut Jade Arm_2

Han Yi used up 100,000 top-grade spirit stones to set up this formation within 10 miles; it was not an exaggeration to call it a money-devouring beast.

As for top-grade spirit stones, although they could also be used, they would require ten pieces. Even with Bao Zhe Sheng's status, he only had eight top-grade spirit stones in his Qiankun Ring, which wasn't enough to form the array. So Han Yi simply used all top-grade spirit stones.

Moreover, this time, Han Yi had learned his lesson. He didn't move Bao Zhe Sheng's top-grade spirit stones into his own Qiankun Ring to avoid triggering the ancient corpse's mutation again.

This formation was on the same level as the Xuandan Sect's Sect Guardian Array, the Zhou Heavenly Xuangang Array. However, Han Yi only set up a smaller version of it, and it took him just an hour to complete.

Then, he stood at the core of the formation on an immortal cliff, waiting for Zhang Tu and the grey slave to enter the trap.

Two days later.