"Xingyuan Realm?"
Alkaid was quite surprised and delighted to hear the name of such a material.
The Xingyuan Realm was indeed the core material for refining the Heavenly Abyss Tower.
He had prepared several Immortal Artifacts as candidates to serve as the carriers for "essence," and among these Immortal Artifacts, the one he favored most was the Heavenly Abyss Tower.
The Heavenly Abyss Tower could absorb and contain all attacks.
Although once it exceeded the limit of what it could absorb and contain, it would lead to the destruction of the Immortal Artifact, in some ways making it resemble a single-use Immortal Artifact.
But...
The fact was, its performance was exceptional.
Before the Heavenly Abyss Tower was destroyed, it was essentially invulnerable.
As for the destruction of the Heavenly Abyss Tower...
It indeed would affect his cultivation.
But he was a powerful Artifact Refiner himself, and if an Immortal Artifact was destroyed, he would simply refine another.