Ling Tian had deep attainments in Intent Power, Space Law Power, and formation restrictions. So, once he understood the Heart Seal and the principles behind the whole formation, he quickly grasped the key points. He gained considerable insight into rune secret arts and could at least deploy fairly powerful rune formations, either for attack or defense. The deeper his understanding grew, the more adeptly he wielded them.
As mentioned before, not everyone had deep attainments in spatial laws and formation restrictions, much less in Intent Power. So mastering rune secret arts wasn't easy—at the very least, it was harder than they had imagined.
Fortunately, the people of Lingxiao Pavilion followed the principle of "gathering a hundred streams into the sea" and cultivated many secret arts. Thanks to Ling Tian, their attainments in Intent Power were also quite good. With Feng Xi's guidance, some of them had mastered rune secret arts, including Old Man Ling and Zi Yun. They soon melded those arts with formation-restriction techniques and put them into practice, trying them out on the protective formation around their sect's headquarters.
The results were excellent, greatly increasing the power of the protective formation. This made Fairy Sword Ji and the others look forward even more to Chi Xue and his allies attacking together; they could use the opportunity to inflict even heavier losses on them.
Of course, only a dozen or so cultivators had mastered rune secret arts so far. Fairy Sword Ji and Tan Tai Chang Feng were completely at a loss, and even Gu Ao, who had a deep understanding of spatial laws, was stumped. Clearly, comprehending spatial laws alone wasn't enough to master this art.
Although Ling Tian and the others had mastered rune secret arts, they had only taken their first steps. Gaining deeper attainments would