Without the slightest hesitation, Wei Cheng officially started his training for the Life Immortal Soldier.
The words Life are of utmost importance.
Accordingly, he used his strongest card for assistance, that is, the Primordial Spirit World.
Though a Life Immortal Soldier is related to the Immortal Body and not substantially connected to the Primordial Spirit World, the role of the Primordial Spirit World is indeed substantial.
If nothing else, it's about defense and damage reduction.
What is the defense strategy?
What is the damage reduction plan?
This is a significant topic which requires serious investigation and deduction. What kind of rule and structure, and what kind of Immortal Law or Divine Skills will provide the best cost-effective defense and damage reduction?
It does not involve stubborn forceful merging of an Immortal Artifact into the Immortal Body, thinking some mysterious techniques or sacred books can help with the merger.