The Slayer of MU Online is an agile and lethal warrior, specialized in wielding dual swords to perform fast and devastating attacks. This character combines speed, strength, and precision, offering a dynamic and strategic playstyle that makes it ideal for both PvE and PvP. Originating from Lorencia, the Slayer becomes a master of close combat, capable of taking down enemies with coordinated bursts of strikes.
Unlike other classes that rely on defense or magic, the Slayer excels at dealing constant damage while moving swiftly across the battlefield. It’s an excellent choice for players looking to farm efficiently, participate in intense PvP events, and join parties that need a fast and versatile attacker. Its combination of speed and raw power makes it an essential character to dominate in MU Online.
Slayer Evolutions

Slayer

Royal Slayer

Master Slayer

Slaughterer
Default Stats
| Lvl Points | Strength | Agility | Vitality | Energy | Status | Life | Mana | Lvl Life | Lvl Mana | Point Life | Point Mana |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 28 | 30 | 15 | 10 | 83 | 130 | 10 | 1.5 | 1 | 3 | 1 |
Slayer Party Bonus
The Slayer can activate special bonuses when teaming up with certain classes in MU Online. These combinations increase the party’s experience, defense, and attack power.
- Dark Knight - Summoner - Slayer
Recommended Equipment for Slayer
The Slayer specializes in using dual swords or claws, allowing her to perform rapid and devastating attacks. Below are some of the most recommended weapons for this class:
Recommended Weapons
- Short Sword: Ideal for early levels, offering a good balance between speed and damage.
- Double Blade: As you progress, this weapon becomes an excellent choice due to its high attack speed.
- Archangel Ultimate Short Sword: At higher levels, this sword provides a significant damage boost.
Recommended Armor Sets
- Slayer Red Wing Set: Provides a good combination of defense and moderate dexterity requirements.
- Slayer Ancient Set: Offers higher defense, suitable for tougher battles.
- Slayer Demonic Set: Ideal for maximizing damage, though it requires high strength and dexterity.
Key Slayer Skills
- Pierce Attack: A fast attack skill that pierces through enemies, dealing significant damage.
- Bat Flock: Summons a swarm of bats that damage enemies in a wide area.
- Sword Inertia: Throws three short swords that return like boomerangs, damaging enemies in their path.
- Detection: Reveals life forms around the area, marking them on the minimap.
PvP and PvE Strategies
PvP
In player vs. player combat, the Slayer stands out for her high speed and burst damage. Use skills like Pierce Attack and Bat Flock to disorient opponents and maximize damage output. Maintaining high Agility and Strength is key to improving evasion and attack power.
PvE
For fighting monsters, focus on area damage skills such as Bat Flock. Equipping weapons that increase attack speed helps clear mobs quickly. Don’t forget to optimize your stats for both survivability and damage.
Recommended Stat Distribution
- Strength: 30%
- Agility: 50%
- Vitality: 10%
- Energy: 10%
This build prioritizes agility for higher attack speed and evasion, while strength boosts overall damage. Vitality and energy remain balanced to maintain survivability and skill usage.
Slayer Formula Calculations
| Calculation | Formula |
|---|---|
| Max Damage | Strength ÷ 4 |
| Min Damage | Strength ÷ 9 |
| Attack Rate (PvM) | (Level * 5) + (Agility * 1.5) + (Strength ÷ 4) |
| Attack Rate (PvP) | (Level * 3) + (Agility * 4) |
| Defense | Agility ÷ 5 + Shield Defense |
| Attack Speed | Agility ÷ 12 |
| Magic Attack Speed | Agility ÷ 12 |
| Defense Rate (PvM) | Agility ÷ 3 + Shield Defense Rate (+10% with full set) |
| Defense Rate (PvP) | (Level * 2) + (Agility * 0.25) |
| Wizardry Damage Max | Energy ÷ 4 |
| Wizardry Damage Min | Energy ÷ 9 |
| Elemental Min Damage | Pentagram Min Damage + Energy ÷ 9 |
| Elemental Max Damage | Pentagram Max Damage + Energy ÷ 6 |
| Elemental Defense | Pentagram Defense + Agility ÷ 3 |
Desmodus (Exclusive Slayer Muun)

The Slayer in MU Online starts her journey with Desmodus, an exclusive Muun companion that grants unique benefits to this character.
To obtain it, simply right-click the Muun egg to receive Desmodus Level 1. This Muun is essential for improving combat efficiency and granting the Slayer special abilities.
Desmodus Skills
- Grade 3: Increase Attack Speed Skill Muun (not applicable in PvP)
- 30-Day Period: Increase Attack Speed Skill Muun x2
Growth and Evolution
Desmodus can grow and evolve through special missions known as Quests. Completing these quests grants rewards such as Desmodus itself and Evolution Stones for upgrading.
Reward Quests
| Quest | Reward |
|---|---|
| 1st Advanced Quest | Desmodus Level 1 |
| 2nd Advanced Quest | Desmodus Level 1 |
| 3rd Advanced Quest | Desmodus Level 1 |
| 4th Advanced Quest | Desmodus Evolution Stone |
Slayer Wings

Wings of Satan
Used by Slayer – Required Level: 180

Wings of Dragon
Used by Royal Slayer – Required Level: 290

Wings of Chaos
Used by Royal Slayer – Required Level: 400

Wings of Silence
Used by Master Slayer – Required Level: 400

Wings of Condemnation
Used by Slaughterer – Required Level: 800 (4th Quest)

Wings of Mercy
Used by Slaughterer – Required Level: 1200 (5th Quest)
Conclusion
The Slayer of MU Online is one of the most dynamic and deadly classes in the game, perfect for players who enjoy speed and melee combat. With her evolutions and adaptability to both PvE and PvP, this character has become an essential choice for any party.
Whether you aim to farm quickly, dominate in PvP battles, or experience a fast-paced and aggressive playstyle, the Slayer offers everything you need to shine on the battlefield. With proper stat allocation, a suitable gear set, and strategic wing usage, you can unlock the Slayer’s full potential.
If you want a versatile, fast, and powerful character with a unique combat style, then the Slayer is undoubtedly one of the best choices in MU Online.

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