At this point, Alan also explained to Lucy some of the principles behind the Lost Magic Urano Metria. Having spent these past few years gaining a deep understanding of Celestial Spirit Magic, Lucy immediately grasped the key considerations of this supreme spell.
First, it required extremely precise control over one's own magic power. Second, it had an exceptionally high demand for magic energy. Because the caster needed to commune with all eighty-eight constellations of the firmament, the spell could not be released without a sufficient reserve of magic power.
As for mastering magic power, Alan had arranged for Lucy's training at the academy over the years to focus primarily on magic control. This was precisely why Alan had decided to teach Lucy Urano Metria next year; he felt that her control over her own magic had reached the necessary level to take the next step.
Chapter 163