A formation plate that possessed spirit wasn't only strong, it was also capable of absorbing spiritual energy to grow. More importantly, even without the zhenqi of a cultivator, it could activate by itself.
Even though self-activation didn't sound like a big deal, it could prove to be useful in desperate situations.
For example, if a person was under immense danger and wasn't in the condition to come into contact with the formation plate, a Spirit tool like this could potentially save one's life.
Thus, a sentient formation plate was one of the most sought after protective measures of cultivators.
However, only 6-star formation masters had the ability to create them. Furthermore, luck played a huge role as to whether an inscription would create a sentient formation plate or not.
Given the rarity of the object, he had only heard of it from rumors. As such, he didn't consider this possibility right from the start.