Musicians had two ways to decipher illusions. No matter what illusions the enemies made, the School of Modifications could form music theories into formulas and destroy the illusion by force. With a big fireball, the entire terrain would be gone. The illusions attached to the reality would certainly be defeated.
But for Ye Qingxuan, this was nonsense. He knew nothing about the movements of the School of Modifications at all. He was never good at interfering and influencing matters. Plus, there were so many innocent people onboard that he could not do this at all. Since he could not do it forcefully, the only way he could go about was through his technique.