Rock VS Rock! (2 in 1)

"An expert can definitely master any weapon in a shorter amount of time and grasp its essence more quickly than other people. However, understanding, usage, proficiency and mastery are all completely different concepts." Karl said while shaking his head. "Furthermore, weapons like spears are the type that is easy to use but difficult to master. This is even without considering its weight and length, or the custom-made Overlord Spear. It's too hard to control as compared to ordinary spears. If he only knows how to use it, how can he match up to Zhao Yilong, who has reached perfection in his mastery? All Mouthy King... appears to have lost some of his reasoning."