In the Official Ordalia setting, your character knowledge and special abilities are represented by various different skills, grouped into Disciplines. Each Discipline defines a wider range of skills that your character can learn, but remember that each archetype has access only to a limited number of Disciplines, according to its background.
Skill knowledge is measured by your character level in that specific skill, which can range from 1 (basic) to 5 (mastery). Earning Experience Points allows you to acquire higher level, and that gives you access to increasingly powerful Event Cards.
So, here is the list of the currently available Disciplines in Ordalia Official Setting. Check it before choosing your Archetype, or to have a rough idea of what your opponents can do!