So using this for crystal armor was the best option for Evan.
To be honest, if Evan wanted to be a long distance attacker type, he could also do that. But if he did that, he would always have a weakness, which is his body.
Aya had beaten up the three boys from time to time in the academy.
One of the main reasons was to help them practice their body and let them grow stronger. Because otherwise, their bodies' development would lag behind their magic development.
While it was normal for a normal mage.
But for a magic warrior, it was unacceptable.
The three of them all aimed to become magic warriors with Dean focused to be the main tank and also close range damage dealers. Leon wanted to be both the control and attack type of magic warrior with his shadow and earth magic. While Evan wanted to be the main attacker, be it at close range or long range.
Yun took the ordinary mage route.