He started.

The first step, Fang Yuan turned into a divination tortoise.

The second step, he started to activate a large number of mortal Gu, followed by vajra thought Immortal Gu and more mortal Gu.

The third step, and the most important one, he activated precaution Immortal Gu.

Puff!

Fang Yuan turned into a divination tortoise, spitting out a huge amount of blood. In his immortal aperture, large numbers of mortal Gu were destroyed, but thankfully, precaution Immortal Gu was sturdy and did not get damaged.

Fang Yuan's head was dizzy, his immortal killer move failed, his organs were damaged, he suffered heavy injuries.

Thankfully, he had transformed into a divination tortoise, an ancient desolate beast, he had a tough body and incredible recovery speed. If he did this with a human body, his injuries would have been worse, his organs and intestines might have disintegrated on the spot.

"Why did this happen?" Fang Yuan was dazed.

This was different from what he conceptualized.