The crowd of cultivators had no choice but to be shocked and take this seriously.
Many super sects claimed that their protective grand formations could withstand Mahayana attacks or trap Mahayana cultivators. Yet in the Cultivation World, even among sects that had stood for extremely ancient eras, there had never been a case of any sect's protective grand formation truly trapping a Mahayana cultivator.
It was not that all protective grand formations were weak. Rather, when a protective grand formation truly had to face a Mahayana cultivator, it would be hampered by all kinds of circumstances, making it difficult to display its true power.
For example, there might not be enough powerful personnel to control it, or enough energy from energy crystals. Worse still, even if the controllers urged it on with all their might, they might not be able to unleash the formation's full power.
If a grand formation was not controlled by the person who had arranged it, then no matter how familiar someone else was with its operation, they might still be unable to fully activate its power. The person who had arranged the grand formation could sense even the slightest anomaly as it operated and immediately make the most minute adjustments, alter the Spirit Patterns, or rapidly add more Spirit Patterns, allowing the grand formation to unleash its strongest power completely.
Especially those protective grand formations that had existed for extremely long eras. Their power was boundless, but they could only be regarded as a deterrent to cultivators of the Three Realms. At this moment, they could no longer display their strongest power.
When a sect truly had to rely on its protective grand formation to resist a Mahayana cultivator's assault, that sect was probably already struggling to protect itself and on the verge of collapse.