Although giant dragons have their strengths and weaknesses, which are innate factors, in Zhao Guang's view, the upper limits of giant dragons are actually about the same. It's just that some giant dragons exhibit more inherent abilities while others less.
Although Sephidya hasn't been born for long, she has always improved according to her plan.
Back then, she could have reached her potential all at once, but Zhao Guang made Sephidya absorb slowly and improve comprehensively, pushing her potential to the limit. It's rare for normal giant dragons to cultivate Combat Energy.
Therefore, in terms of various intensities, Sephidya far surpasses any type of giant dragon.
The reason she was severely injured by that Red Dragon last time was because the opponent had a special treasure.