This was when Gustav realised just how powerful E.E's vortexes were, but whenever he made use of this particular attack, it also affected him, which was why he didn't like making use of it.
His most powerful vortex attack was to create a vortex within something after analysing its structure.
Opening a vortex within every single ball caused the integrity and toughness of the balls to crumble.
He only needed to throw a small fist attack to destroy them, including the seventh ball.
But he started vomiting afterwards and passed out.
Aildris and Chad, on the other hand, were quite the monsters among the special class candidates, just like Elevora.
No one really understood what happened with Aildris. All they saw was the fading away of the color of the environment around him as he moved closer to the balls.
The color of the balls turned from black to grey, and a single punch from him shattered them one after the other.