Ancient scrolls 5, what do those skills mean?

Archers are passive skills, that is, adding the damage of your bow and arrow. For example, the original damage of 20 plus %20 is 24 points, and when a * * * has level 5, it will double the damage when it is full. Hawkeye skill can produce magnified effect by holding down the right button when shooting an arrow. Not without skill points.