Within the Heavenly Flame Cauldron, a golden pill wreathed in golden light hovered in place. It was the size of a fist, its entire surface gleaming like gold, and streaks of golden lightning occasionally radiated from it.
As the lightning flickered, thunder rumbled without cease.
The Ninth-Rank Mysterious Pill, the Lightning Tribulation Pill, had finally been successfully refined.
Looking at the fist-sized Lightning Tribulation Pill, Xiao Yan curled his lips into a smile, though traces of exhaustion showed at the corners of his eyes.
His soul power was still only at the level of Heaven Realm Great Perfection.
In the past, Heaven Realm Great Perfection had represented tremendously powerful soul power, but as his strength continued to grow, its advantages steadily diminished.
Once he reached the Nine-Star Dou Sheng level, even members of the magical beast races, who were the least adept at soul cultivation, would possess soul power at least at the Heavenly Realm level.
As for experts at the Peak Nine-Star Dou Saint level, even the weakest among them possessed soul power at Heaven Realm Great Perfection, while some had even reached the Emperor Realm.
With soul power at Heaven Realm Great Perfection, refining pills below the ninth rank was effortless. Even refining a Ninth-Grade Treasure Pill posed little strain, but refining a Ninth-Rank Mysterious Pill placed considerable pressure on him.
Refining this Lightning Tribulation Pill had actually taken quite a toll on him.
And if he were to refine a Ninth Grade Golden Pill in the future, his Heaven Realm Great Perfection soul power would struggle greatly.
"Once I leave Ancient Dragon Island, I should find a way to raise my soul power to the Emperor Realm."
Xiao Yan shook his head helplessly. Just then, the previously calm sky began churning violently.
Pitch-black thunderclouds hurriedly gathered, countless