x2 items:
Mastery Skill DMG +?
Mastery Energy Level +?
x3 items:
Double DMG Chance +18%
Mastery WIZ DMG +?
x4 items:
Mastery Critical DMG +?
Mastery Excellent DMG +?
Ignore DEF Chance +9%
Mastery All Stat Levels +?
Mastery Base DEF +?
Critical DMG Chance +20%
Excellent DMG Chance +20%
Triple DMG Chance +8%
Mastery HP +?
Mastery DMG Reduction +?