Character Stat Improvements — MU Online Season 22 Part 1-1
Characters Affected
Dark Knight, Magic Gladiator, Slayer and Rage Fighter
This round of stat changes covers four melee classes. For Magic Gladiator it only applies to the Knight type build that uses one-handed swords.
Character reset (September 15, 2026): stats, Master Skill Tree and Skill Enhancement Tree were reset for all four classes, so you can rebuild them under the new rules.
Weapons and New Options
Attack Power and Combat Power (%)
Mastery and Legendary weapons for these classes have new Attack Power and Combat Power values.
New Options
- Each class gets a new option whose value grows with your stats.
- Dark Knight and Slayer lose the Skill Attack Power (%) option.
- Rage Fighter's Area of Effect, Divine Beast and Melee Attack Power options work differently now.
- You can see the new values in the Character Information window.
| Character | New Option |
|---|---|
| Dark Knight | Rage Attack Power |
| Magic Gladiator (One-handed Sword) | Spirit Attack Power (used by Crusher Charge) |
| Slayer | Dark Attack Power |
| Rage Fighter | Area of Effect, Divine Beast and Melee Attack Power settings changed |
Major Skill Changes
Basic Skills
| Skill | Changes |
|---|---|
 Fire Blow | - Now a normal skill, and its extra damage setting is gone - Requires Level 380 and 1,090 Strength - Damage range is larger |
  Swell Life / Sword's Fury | - Shorter casting time - Swell Life now lasts 1 hour |
 Crusher Charge | While the buff is active, Chaos Blade and Ice Blood reach a range of 6 |
 Dark Side | - Gets extra damage from Master Skill Tree enhancement options - Damage is applied in a better way |
 Pierce Attack | Damage range is larger |
Master Skill Tree and Skill Enhancement Tree
| Skill | Changes |
|---|---|
Fire Blow | - Blow Enhancement and Blow Mastery are removed from the Master Skill Tree - Fire Blow Enhancement and Fire Blow Mastery are added - Sword Blow now needs 10 points in Fire Blow Mastery |
Dark Side | The enhanced skill now uses a Freeze and Bleeding combination |
| Rage Fighter Stat Enhancement | The stat enhancement value in the Master Skill Tree now matches other classes |
Pierce Attack | - 2nd enhancement option is now Number of Hits +1 - 6th enhancement option gives the same Skill Damage Increase as other classes - Debuff options are now Freeze and Bleeding |
 Bat Flock | 6th enhancement option gives the same Skill Damage Increase as other classes |
| Common Changes | Several skills have a new layout and new values for their tree enhancement options |
Dark Knight
Fire Blow and Sword Blow
Fire Blow is no longer a Root Skill. It is a normal skill now, and its old learning requirements are gone.
| Requirement | Value |
|---|---|
| Fire Blow learning requirement | Level 380 and at least 1,090 Strength |
| Sword Blow Root Skill requirement | 10 points in Fire Blow Mastery |
Slayer
Pierce Attack: 2nd Enhancement Option
The 2nd enhancement option for Pierce Attack is now Number of Hits +1.
Pierce Attack and Bat Flock: 6th Enhancement Option
On both skills the 6th enhancement option now gives a Skill Damage Increase on par with other classes.
Pierce Attack: Debuff
Pierce Attack's debuff is now a choice between Freeze and Bleeding, so you can pick the one that suits your build.
Rage Fighter
Master Skill Tree: Stat Enhancement
Both the Master Skill Tree and the Skill Enhancement Tree were adjusted for Rage Fighter. The stat enhancement value in the Master Skill Tree now matches other classes.
Dark Side: Debuff
In the Skill Enhancement Tree, the enhanced Dark Side now uses a Freeze and Bleeding combination.
Weapon Equip Efficiency
Weapon equip efficiency is also better. Wearing the same weapon in both hands, or two different weapons, now follows the same rules as Dark Knight, Slayer and Magic Gladiator.
Common Changes
These changes apply across the affected classes.
| Category | Changes |
|---|---|
| Skill Values | Some skills have new attack power and resource cost values |
| Skill Attack Speed / Max Attack Speed | - Max attack speed changed for Dark Knight, Rage Fighter and Slayer - Some skill attack speed settings tied to character attack speed were changed |
| Damage Range / Number of Hits | Some skills have a new damage range and number of hits |