Fourth class evolution in MU Online: 4th quest and high-season titles

The fourth class evolution is MU Online's deepest end-game milestone — the point where a character transcends even the 3rd evolution title and becomes something new. It requires months of dedicated play and rewards proportionally.

Season availability

Season availability:

Third evolution: exists in Season 6+ (always been in MU)
Fourth evolution: Season 13 and above

NOT available in:
→ Season 6, 7, 8, 9, 10, 11, 12

Available in:
→ Season 13 (where it was introduced)
→ Season 14, 15, 16, 17, 18 and above

Important: "season 13" on different private servers may vary:
→ Some S13 servers have the 4th evolution
→ Others label themselves S13 but use S12 configs without the 4th quest
→ Verify on your specific server whether the 4th evolution quest exists

For context — the classic evolution chain:
1st evolution: S6 and above (DK → Blade Knight, DW → Soul Master, etc.)
2nd evolution: S6 and above (Blade Knight → Blade Master, Soul Master → Grand Master, etc.)
3rd evolution: S6 and above (Blade Master → final tier titles)
4th evolution: S13+ only (new tier beyond 3rd)

S6 players: the 3rd evolution IS your highest tier — no 4th quest exists on S6 servers.

Requirements for the 4th evolution

General requirements (vary by server — verify yours):

REQUIREMENT 1: Complete the 3rd evolution
→ Must have completed the third quest and have the 3rd evolution title
→ The 4th quest is always gated behind the 3rd being complete

REQUIREMENT 2: Maximum character level
→ Typically: character level 400 (the S6-S13 cap)
→ Some servers may require a higher cap (server-dependent)
→ Cannot begin the 4th quest until level cap is reached

REQUIREMENT 3: Master Level requirement
→ This is usually the hardest gate
→ Common requirement: ML 200 (200 Master Level points earned)
→ Some servers: ML 150+, others ML 300+
→ ML 200 takes: months of dedicated farming past level 400
→ Why this gate: the 4th evolution is truly end-game, not mid-game

REQUIREMENT 4: Quest items
→ Specific items required for the 4th evolution quest
→ These items: typically from S13+ bosses and events
→ Examples:
  → "Fragment of the 4th Evolution" from end-game bosses
  → "Crystal of Transcendence" from specific events
  → "Seal of [Class Name]" from quests within S13+ maps
→ The exact items: server-specific (verify with your server's quest info)

REQUIREMENT 5: In-game quest completion
→ A quest chain from specific NPCs
→ May include: killing specific monsters, collecting items, visiting locations
→ The quest narrative: tied to the class's lore evolution

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Approximate time to 4th evolution:

For a dedicated player:
→ Level 1 to max level: 2-4 weeks (server EXP rate dependent)
→ 3rd evolution: 1-2 weeks after max level (quest items, requirements)
→ Master Level 200: 2-4 months of farming after max level
→ Quest items: 1-2 months of S13+ content
→ Total estimate: 3-6 months of active play after server launch

For a casual player:
→ Master Level 200: can take 6+ months
→ Total estimate: 8-12+ months

The 4th evolution is intentionally rare on servers — it separates truly dedicated long-term players from the mid-game population.

What the 4th evolution provides

Rewards from completing the 4th evolution:

1. NEW CLASS TITLE (per class):

Dark Knight 4th evolution:
→ Title: Dragon Knight (or server-specific variant)
→ New appearance: visual transformation, aura effects

Dark Wizard 4th evolution:
→ Title: Archmage / Soul Wizard 4th (server-specific)
→ Visual: enhanced magical aura, staff visual upgrade

Fairy Elf 4th evolution:
→ Title: Noble Elf / Divine Elf (server-specific)
→ Visual: enhanced bow effects, wing-like visual elements

Magic Gladiator 4th evolution:
→ Title: Grand Gladiator / Supreme Gladiator (server-specific)
→ Visual: combined physical and magical aura effects

Dark Lord 4th evolution:
→ Title: Supreme Emperor / High Lord (server-specific)
→ Visual: enhanced raven and horse effects, crown visuals

Summoner 4th evolution:
→ Title: Dimension Master 4th / Void Summoner (server-specific)
→ Visual: dark energy visual enhancements

2. NEW SKILLS:

Each class gains 1-3 new skills exclusive to the 4th evolution:
→ These skills are unavailable before the 4th quest
→ They represent the class's ultimate abilities
→ DK example: a super-charged version of Death Stab or a new AoE
→ DW example: an ultimate Nova variant
→ The skills are generally: the highest-damage single skill for the class

4th evolution skill characteristics:
→ Higher base damage than any 3rd evolution skill
→ Often: longer cooldown (balanced by the high impact)
→ Sometimes: enhanced visual effects

3. WING LEVEL 4 (Wings of Ruin/equivalent):

Wing L4 overview:
→ Wing Level 4 is ONLY accessible after the 4th evolution
→ Significantly stronger than Wing L3
→ Provides: larger EXP bonus, larger damage reduction, more elemental options

Wing L4 comparison to L3:
Wing L3 (S6+ max): substantial damage + defense + EXP bonus
Wing L4 (S13+ max): all Wing L3 bonuses × 1.3-1.5 + new options

Wing L4 creation:
→ Requires Wing L3 as base
→ Requires specific 4th evolution materials
→ Chaos Goblin combination with high materials cost
→ Success rate: moderately low (verify on your server)

4. STAT BONUSES:

The 4th evolution itself typically adds:
→ Flat stats increase (STR, AGI, VIT, ENE)
→ % bonuses to relevant class stats
→ The magnitude: server-specific, but meaningful

Per-class 4th evolution skills

What each class gets (general — verify on your server):

DARK KNIGHT:
→ 4th skill: An enhanced version of Death Stab (highest possible single-target)
→ Or: a new ultimate AoE beyond Twisting Slash
→ Characteristic: physical damage values significantly above 3rd evolution equivalents

DARK WIZARD:
→ 4th skill: Enhanced Nova or a new explosion skill
→ Characteristic: magical damage ceiling increase
→ Some servers: a summoning skill at 4th tier

FAIRY ELF:
→ Attack Elf 4th: multi-target arrow skill exceeding Triple Shot
→ Support Elf 4th: enhanced Soul Barrier (stronger shield percentage)
→ Characteristic: either offensive or support peak, depending on build

MAGIC GLADIATOR:
→ 4th skill: Combined physical + magical ultimate
→ Characteristic: the hybrid nature fully expressed in one skill
→ Often the highest total-damage skill of any class (combining both damage types)

DARK LORD:
→ 4th skill: Enhanced Fire Scream or new command AoE
→ Also: enhanced Summon skill (improved utility)
→ Characteristic: combines fire damage peak with improved utility

SUMMONER:
→ 4th skill: Enhanced Drain Life or an ultimate curse
→ Characteristic: extended duration or amplified DoT
→ Some servers: an AoE version of Drain Life that affects multiple targets

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4th evolution vs 3rd evolution: power gap

The power gap:
→ A 4th evolution character vs 3rd evolution of identical gear: 4th wins
→ The margin: depends on how long since 4th evolution (Wing L4 + new skills compound)
→ In mid-game content (level 350-400 equivalent): 4th evolution new skills are overkill
→ In end-game S13+ content: 4th evolution is necessary to keep up

In PvP:
→ 4th evolution vs 3rd evolution: significant gap at the same gear level
→ Wing L4 alone: enough of a difference to matter in competitive PvP
→ New 4th skills: burst potential increase that shifts PvP matchups

See also the third evolution quest guide (the 3rd quest that must be completed first), the Master Level guide (earning ML efficiently — the primary time gate), and the Wings guide (Wing Level 4 crafting after the 4th evolution).

Frequently asked questions