> Introduction > Game Guide > Using Combos
Random Combo (Sword/Crystal)
Skill Combo (Magic Book/Staff/Arrow)
Skill Combo (Magic Book/Staff/Arrow)
Deco classes can be saved a Combo Gauge by a Combo. When you save Combo Gauge, use the combo skill perfectly.
- Use skills continuously and build up your Combo Gauge.
  The collected combo gauge will be useful for CRITICAL ATTACKS
- When using a skill, the gauge will go up by +2.
- Space Combo doesn't exist any combo secret book.
Combo of each class
Prominas
Priest
Holy Avenger
Sniper