Although Pei Xuanjing indeed underwent several rounds of life simulations, whether in the simulated worlds or in this Daming World, his adversaries were more often than not suppressed by his realm level or defeated by his domineering sword intent.
The only cultivator he had truly encountered who was proficient in Daoist Magical Powers was probably Superintendent Ye Daoyuan in the Ten Thousand Realms World. It was also an opportunity for him to learn the Talisman Method from him.
However, comparing Ye Daoyuan to the current Taixu Venerable was indeed like comparing heaven and earth. The Taixu Venerable had cultivated for countless years and had stepped into the Strongest Realm of the Nine Realms of Spirit for thousands of years, giving him ample time to study those divine powers. No matter how much time Pei Xuanjing spent cultivating, even including the years spent in the life simulations, it was still no match for the opponent's cultivation period.