Taking Shi Ji around to inspect the large cave inside and out, Shi Ji looked at Nezha as if he were a monster. In the Primordial era, the higher an immortal's cultivation, the harsher the restrictions. As a Profound Immortal, Shi Ji couldn't possibly unleash such a terrifying strike.
Nezha didn't bother to explain. That strike was largely due to the Magical Treasure. The resources he had scraped off Yin Shou had almost entirely been used to forge that banner, but now the materials were completely ruined, beyond repair.
What's more, the technique he mimicked was the Heavenly Creation Strike, a special attack targeting the Primordial Heaven and Earth—completely normal for it to be devastating.
After sizing up the surroundings, he told Shi Ji to refine suitable stones for repairs. Shi Ji readily agreed. After all, as a Stubborn Stone who had gained sentience, this task was no harder than eating a meal.
As for Nezha? He went off to seek "adhesive."
