This can be considered homework too (2)
It was also the foundation of this pyramid.
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The second level of the step theory was a performance of the ability user's stability and improvement of his ability.
Now, all the high-wall cities had a way to strengthen the mental strength of ability users through external forces.
However, this kind of enhancement would often cause the ability users who were originally stable in the first stage to lose control or the negative effects would deepen. Therefore, the stability of the ability users who could enter the second stage was one of their greatest advantages.
Just like a lizard, his stability made him the treasure of many researchers, who especially wanted to cut him.
The special feature of the second stage was the extension of one's ability.
The most obvious example was still the spider lineage. The first stage of the spider lineage could only affect one's self.
The second stage of the spider series could already affect others.