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Fang Xi shook open the Xuan Ming Banner.

Countless ripples of water gathered across the banner, faintly forming the shape of a vicious flood dragon!

A Nether River that seemed to come from the Nine Netherworlds emerged, with countless grains of Xuan Ming Divine Sand bobbing within it.

Any Spirit Transmutation Cultivator who entered the range of this treasure would be greatly suppressed. Before they could even unleash their supernatural powers and magic power, they would already be weakened by forty to fifty percent!

Roar, roar!

At the bottom of the Nether River, there seemed to be the phantom of a venomous flood dragon, constantly spewing Poison Mist. The mist rose above the river, dreamlike and illusory...

"Not bad. Truly not bad..."

After briefly testing the might of the 'Xuan Ming Banner,' Fang Xi was extremely satisfied.

"It's a pity that this Nine Nether Profound Sand Underworld River Great Array was created by me, and there are still many imperfections. If I could obtain the array diagram from that overseas immortal estate, it would truly be formidable..."

The array formation of that overseas immortal estate could directly suppress even a Void Returning Cultivator to the Core Formation level!

Fang Xi could only indulge in such fantasies for a moment before returning to Fangxian University with Ghost Axe Venerable.

Deep within Fangxian University, beside a gigantic Furnace Refining array.

The two stood shoulder to shoulder, gazing at a purple-black demon core that continuously radiated light within the furnace!

It was none other than the inner core of that Violet Jade Flood Dragon, and its grade was as high as the sixth rank!

At this moment, under the unceasing impact of Cauldron Fire and various Origin Energy particles, crystalline fragments were being peeled from the sixth-rank demon core one by one. They