Mirage Dragon

Sharpening the blade did not delay the chopping of firewood, so Wang Daoyuan took the opportunity to improve the tool patterns of his Natal Artifacts.

Besides, after breaking the formation, there was no telling what might be inside.

Raising his Natal Artifacts to top-grade Fourth-order would increase his strength somewhat.

Nourished by spirit fire, the spiritual power contained within his Natal Artifacts, as well as the strength of their materials, had long reached the top-grade Fourth-order level.

Only their tool patterns remained at the mid-grade Fourth-order level, so they could not yet be considered top-grade Fourth-order magic tools.

With the original tool patterns intact, it did not take much effort.

In only half a month, he raised all five Natal Artifacts to top-grade Fourth-order.

The Vermilion Bird Fan carried a wisp of Gui Water Nether Flame and flew into the air above the very center of the Defensive Formation.

A Vermillion Bird Phantom appeared out of thin air, guiding black flames to burn around the outer perimeter of the Defensive Formation.

The defensive light barrier had a radius of only around five hundred zhang, entirely within the flames' reach.

The black flames formed a fiery shell outside the defensive light barrier.

Before long, all the clouds and mist outside the defensive light barrier were burned away.

The clouds and mist inside the defensive light barrier were protected by the formation, and the Gui Water Nether Flame could not seep through.

The main hall continued to spew clouds and mist outward, but the mist it released was swiftly burned to nothing.

Wang Daoyuan took out a Formation Testing Plate and searched for flaws in the formation.

This Formation Testing Plate was pitch-black throughout, with faint black mist coiling around it. At a glance, it did not look like an orthodox cultivator's