Yang Xi's resurrection plan was actually very simple.
First of all, he planned to simulate the Philosopher's Stone's ability with his materialization ability. Damon was currently in the Ossaide Dimension, and Yang Xi was probably the only person in the Azure Dimension who knew how the Philosopher's Stone could fulfill wishes.
The entire revival process would be witnessed by many factions. On one hand, it was to let the upper echelons of the human race, represented by Wind God Ouyang Guanhe, know that the Judgement Organization had already used the Philosopher's Stone, and to dispel their covetous thoughts. On the other hand, it was also a routine operation to show off his muscles to the various large factions. He had to come out occasionally to show off his presence.