Chapter 167- New Floor: Forest Spring Spirit Village (3)
The [Minimal Mana Consumption] skill helps the user to limit the mana consumption and help cast the magic more efficiently. In other words, a person with the skill [Minimal Mana consumption] can cast the same magic as the person without the aforementioned skill with less amount of mana.
Though the mana required for the magic has gone down, it doesn't mean that the power of the magic would also be reduced. Far from it, instead of going down, the power may even increase by a fewfold.
Simon remembered that he had seen an upgraded version of this skill in Irene's status. It seemed that he had acquired a skill that would help him bridge the gap in their power in the future.
About skills, Simon also became aware of another fact. Skills have the possibility of evolving into higher tier skills when used repeatedly or when one gains sufficient mastery over them. The higher the tier of the skill, the more powerful the effect of the skill.