Ning Ye had taken Jiang Xiaofan as his disciple partly because his physique was indeed rare, but also because he had his own interests at heart.
For the vast majority of cultivators, Jiang Xiaofan's greatest use would be to refine him into an avatar, something akin to Soul-Splitting Rebirth, or else use him as a cultivation furnace to aid their training.
Ning Ye naturally would not do anything so utterly devoid of conscience, but he had also been thinking of ways to develop Jiang Xiaofan's potential.
The battlefield of souls was one such way.
Over the years, under Ning Ye's "feeding," Jiang Xiaofan's Primordial Spirit had long since become incomparably powerful.
Yet what was powerful was not merely his own Primordial Spirit. More importantly, it was his body's capacity to withstand battles of the soul.
The body was the environment; the sea of consciousness was the battlefield.
His body was naturally attuned to spirituality, and his sea of consciousness had been tempered a thousand times over. There was no sturdier battlefield for battles of the soul than Jiang Xiaofan.
Thus, Ning Ye took a different path and directly trained Jiang Xiaofan as a "city of souls."
Since Jiang Xiaofan was one of their own, fighting here was equivalent to fighting on home ground. Should they encounter a powerful Primordial Spirit that Jiang Xiaofan could not handle, Ning Ye could lend a hand. If they truly could not win, they could call in reinforcements, such as Linlang. Conversely, when they made a kill under such circumstances, Ning Ye, as a participant, could share in the benefits as well.
And more terrifyingly, this was only the beginning—because Ning Ye held a handful of fragments in his hand.
He tossed them in one by one, defeated them, and devoured them. Silver Star Arhat's