The mastery is referring to the mastery EXP you acquire from the items you craft, refine or harvest.
Sometimes when I crafted rings, I acquired double the mastery.
I don't know what a special scroll is but I assume they mean the Eqp. Enhancement & Potential scroll.
All personality traits are good except for Empathy:
Ambition adds an increase in PvP damage and percentage of the defense from a monster you ignore, decreases the death EXP loss;
Insight gives you the ability to show the hidden potential of an item by using a free magnifying glass;
Willpower adds an increase in HP, physical and magic defense and resistance to abnormal status effects
Sometimes when I crafted rings, I acquired double the mastery.
I don't know what a special scroll is but I assume they mean the Eqp. Enhancement & Potential scroll.
All personality traits are good except for Empathy:
Ambition adds an increase in PvP damage and percentage of the defense from a monster you ignore, decreases the death EXP loss;
Insight gives you the ability to show the hidden potential of an item by using a free magnifying glass;
Willpower adds an increase in HP, physical and magic defense and resistance to abnormal status effects