Runecraft and Alchemy.
These were integral arts to development and improvement that focused on enhancing the functions of living things and those of non-living things.
Asides from the paths to power that sentient and evolved beings in Aigas depended on, these two areas of focus were also considered important.
Naturally, it could be pointed out the these two resulted from one of the paths to power.
Classes.
Blacksmiths could advance their classes, getting to become practitioners of runecraft, where they inscribed runes that gave objects different effects, both utilitarian, defensive and offensive. The same was true for Mages and Healers who could use gain the speciality of runecraft with advances in their class, though the runes would differ massively from each other and bear different effects according to the advanced class.
Alchemy was also like this with but one difference.
It only applied to Mages.
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