"Wizards" are ones who have mastered the very "last form of Force", which the Sage Tower has inherited from the Honorable Age. They manipulate Force to compensate their physical weakness.
Just like sword skills, magic spells are known to have originated in the Lost Age, but an established theory sees the Honorable Age as the very first time when magic became publicized combat skills, and the present form of magic spells were developed by the first generation of the 7 sages. If sword skills use force to maximize physical abilities and destructive power, magic skills are not only combat methods but also a science that uses Force within oneself to manipulate outer forces in creating powerful energy.
Orb is one-handed, which means that Wizards can be equipped with an orb in both hands to double their power. It also leads them to be able to cast multiple magic spells at the same time.
Wizards invest a lot of effort in intelligence in order to efficiently control Force. At the same time, they do not possess much physical strength or agility. Thus they prefer to wear light armor such as Martial Suit Set. According to an unconfirmed theory, they avoid metallic armor because it prevents them from close contact with outer forces. Well-experienced wizards are said to be able to simultaneously use multiple magic spells with ease, and inflict enormous damage just by using a simple spell.Advanced Wizards can also perfectly manipulate the forces of nature into a deadly weapon that can cast multiple enemies into destruction.