Congratulations! The Magic Staff reached the max level of refinement for this class. Make the class reach level one hundred as well, and then you will be elected to a new class.
That happened two months before the battle against Caelis, so Aion felt like he had found another awesome power in his system. Considering how much the had trained that month, he probably could use all his energy and experience to make one of the class reach level one hundred. He confirmed that, but when he made that happen.
Congratulations! The class Mage has reached level one hundred, and you are able to obtain a new class. Do you wish to sacrifice the materials, experience, and energy obtained to unlock the new class? Y/N