With everything prepared, Gu He waved his hand, using Saint Flame to condense a Medicine Cauldron that was entirely blue-black.
Ordinary Medicine Cauldrons could no longer withstand the energy ripples released when a ninth-grade pill formed. Even Medicine Cauldrons on the Heavenly Cauldron Ranking could only endure it a few times before suffering damage. It was therefore better to use a Medicine Cauldron condensed from one's own flames.
A Medicine Cauldron condensed from the Dou Qi of a Dou Saint was harder than the vast majority of weapons in the world, let alone the relatively delicate Medicine Cauldrons. Moreover, since it was formed from the alchemist's own Dou Qi, it was linked to his will. In terms of the assistance it provided during pill refinement, it was no inferior to the Medicine Cauldrons on the Heavenly Cauldron Ranking. Its only flaw was that it consumed slightly more Dou Qi, but for a Dou Saint, that was the least of their concerns.
Once the flames had condensed into a Medicine Cauldron, the refinement officially began.
Nine was the ultimate number. Although a Ninth-grade Treasure Pill did not need to draw upon all the Spiritual Energy within thousands of miles like a Ninth-grade Golden Pill, its refinement was by no means easy. One needed at least the strength of a Half-Saint and a Heavenly Realm soul to have any chance of succeeding. Anyone below either of those basic requirements should not even think about it.
Gu He already met the requirements for refinement. In terms of cultivation, he was now a Two-Star Dou Sheng. As for his soul realm, he was somewhat stronger than someone who had just entered the Heavenly Realm, though he had yet to reach the middle stage of the Heavenly Realm. Coupled with his three previous experiences refining