Inside the mountain's belly, purple flames surged.
Since the Heavenly Heart Seal's primary function was smashing things, its weight was exceptionally terrifying. Though the required materials were not particularly rare, the quantities needed were equally astronomical.
For more than ten consecutive days, Liu Bai had been purifying these metal materials. During the process, he had to continuously use spatial restrictions to compress their volume.
After all, once the Heavenly Heart Seal was forged, it would be as large as a mountain. How would anyone use it otherwise...?
These spatial restrictions allowed the Heavenly Heart Seal itself to be freely enlarged or shrunk. It would be convenient to hold in one's hand, and satisfying to fling out and smash people with.
As for the materials, the Golden Crystal Beast King had specifically fed on metal. His tribe had stored away an unknown amount of precious ores. After Liu Bai had wiped them out in one sweep, he had directly looted a huge quantity of metal ore—enough for him to squander for quite some time.
Thus, as vast amounts of materials were fed in, the Heavenly Heart Seal gradually took shape, and its weight reached an extraordinarily terrifying level.
Time passed bit by bit. Liu Bai finally completed the first two stages of artifact forging, and the Heavenly Heart Seal had fully taken form. At this moment, as Liu Bai supported the azure-gold seal with his divine sense, he felt as though he were holding up a thousand-zhang mountain.
"Phew... This is more than ten times heavier than what Master recorded. Once it is successfully forged, its power should be even greater, right?"
Elder Chi Huo had only been a mere First Grade Supreme. Even with Northern Azure Spirit Academy supporting him, he could not possibly squander precious ores as Liu Bai