One. Three. Five elemental beast cores later, Xu Qi's mind had already filled with the images of how Glassfang Lynxes were living their lives in the wilderness. They became an aggressive group because they were often seen as easy prey by stronger elemental beasts. The crystalline skull and the spell they were using were nothing more than a defensive mechanism developed through their instincts.
As he absorbed the qi and the primal elements from within the cores, Xu Qi gradually comprehended the essence of the Glassfang Lynx's unique technique. The way they weaved primal elements of light wasn't just simple manipulation of it; they were artisans, sculptors of any condensed form of light.
If they had grown further than just the level of a low-grade elemental beast, they would also be able to create blades of light that could be deadly.