When Aeon entered the Bone Wasteland, he noticed a significant difference: while his cultivation and Life Skills vanished, the Grimoire of Life and Death remained unaffected.
This observation led Aeon to an important conclusion: converting all his Life Skills and Artificial Skills into Skill Pages within the Grimoire of Life and Death was a highly advantageous strategy.
[The changes happening to the Artifacts in a simulation world can be brought in the real world and even in the future Battle Play World]
'Great. I think I know what I should do now.'
Moreover, the Grimoire of Life and Death suggested that regardless of the challenges he faced or the worlds he entered, these Skill Pages would stay with him.
In the future, whether he entered new Battle Play Worlds or returned to the real world, he would have access to these powerful Skill Pages, which were far superior to Level 5 Transcendent Grade skills.