Vale then swiftly left the Ceremony Hall and went to the Combat Training Hall to test out his new spells.
He had previously tried using the Divine Sense and his Blessed Healing, but he failed to use them, making it seem like they were useless.
However, last night, after going through so many books on the first floor of the library, he learned that the Holy Arts Practitioners were actually using their Vitality to trigger their spells!
Of course, these people weren't dying so quickly because they drank a potion called Pure Life. This potion is equivalent to the Dark Arts Faction's Darkness Possession and allows them to use Holy Arts, or what they call Sacred Abilities, without using their Vitality.
They will be able to produce a different energy called Sacred Aura which they can use to cast these spells.
Since Vale can not consume that potion, he would have to use his Vitality to trigger these Sacred Abilities.