Man of Many Talents

Kahn's ability to easily pass through Rolakan's legendary rank barrier without apparent effort left everyone bewildered. 

However, what went unnoticed by those present was that it all happened in a mere second.

Contrary to what one would assume, Kahn did not employ brute force, nor did he shatter the legendary rank barrier.

Unbeknownst to his new companions, Kahn had unlocked a unique class known as the Scholar Saint Magician, one of the two magic classes he had recently invoked. This class, achieved through the entire past year of training, held special benefits that he had yet to reveal to others.

The key aspect of this class lay in the term 'Scholar' but in what area did Kahn possess scholarly expertise?

The answer resided within Magic Formations and Barriers.