Mana

Mana is a form of energy that humans (mostly Templars) and Keidran can use for their magic. Humans can draw Mana from the ground, resulting in a large supply of energy, but if it runs out, they will start using the life force of the planet. This is also called Black Mana, and it corrupts the user, as well as destroying its mind. Keidran, however, use Mana Crystals, which gives them a limited, but safe energy supply. When Basitin try to use magic by using a Tower, their mind gets corrupted as it slowly snaps under the strain of Mana. By doing this, they can use magic for a limited amount of time. After being exposed for too long, however, their mind stops functioning properly, and they lose the ability to use magic, and they cannot even form full sentences anymore.

Mana can be used for several things: Conjuring, attacking, defending, teleportation, manipulating elements, controlling people and healing are the uses currently shown in the series.