Concentration

Typically, magic is a simple proposition to those who know it: focus on the spell, cast it, and it simply works. However, for those who see combat, maintaining that focus can be problematic. The concentration skill represents one's ability to cast in combat-- once maximized, one should virtually never lose concentration when casting a spell. Templars, being explicitly trained for battle, will never lose concentration.

It is not necessary to have this skill to utilize powers granted by the Stones of Power to members of the Great Houses.