Currently, the Five Apprentices of Darius had made great progress into the Journeyman stage. They had long developed their own systems of spells, starting from their base spell to its accompanying ones.
Every Journeyman Mage worth their salt had to, at least, do this much. It was impossible to go far in the realm of magic if one did not systematically create their own personal system and relied on the spells of others all the time.
The first step to this was to choose a theme for your system based on your elements. It could be 'speed', 'damage', 'defense', 'attrition', 'cost reduction', 'close combat enhancement', etc.
So for Ash who had the elements of Gravity, Water, Earth, Life, and Lightning. His chosen Main Element was Lightning, and he had shown startling proficiency in Gravity.
