Master Level: Complete System, Points and Progression in MU Online

The Master Level (ML) system is MU Online's advanced progression layer, activated after a character completes their reincarnation journey and reaches level 400. Instead of continuing to accumulate ordinary attribute points, the player begins earning Master Points that are applied to class-exclusive skill trees, dramatically amplifying character power beyond what the base level cap allows.

Prerequisites: The Road to Master Level

Before a single Master point is earned, the character must fulfill a strict sequence of requirements. Class progression in S6 follows this structure:

Dark Knight   → (L150, Quest 1) → Blade Knight   → (L220, Quest 2) → Blade Master
Dark Wizard   → (L150, Quest 1) → Soul Master    → (L220, Quest 2) → Grand Master
Fairy Elf     → (L150, Quest 1) → Muse Elf       → (L220, Quest 2) → High Elf
Magic Glad.   → (no Quest 1/2) →  Duel Master    (direct, no intermediate form)
Dark Lord     → (L150, Quest 1) → Lord Emperor   (uses exclusive CMD stat)
Summoner      → (L150, Quest 1) → Bloody Summ.   → (L220, Quest 2) → Dimension Master

After completing the 3rd Quest (reincarnation to the final form), the character must reach level 400 within that reincarnated form. Only then does the EXP bar switch from accumulating common EXP to accumulating Master EXP.

How Master Point Distribution Works

Each Master level earned grants exactly 1 Master Point. The cap is ML400 — 400 points in total. Each class's Master skill tree is divided into skill groups, and each individual skill has a maximum investment cap (typically between 10 and 20 points per skill).

Unlock logic follows a strict hierarchical progression:

Group 1 (available from ML1)
  └─ Skill A: max 10 pts  →  Unlocks Skill B
       └─ Skill B: max 20 pts  →  Unlocks Skill C
            └─ Skill C: max 10 pts

Master EXP Rate

Master EXP is earned the same way as common EXP — by killing monsters, completing events and Blood Castles — but the amount required per Master level is generally far lower than the EXP needed to gain a regular level at 400. This makes the first 100 Master levels relatively fast, while levels above ML300 demand intense grinding in high-level maps such as Kalima, Deep Dungeon, or Tarkan.

Skill Trees by Class

Skill trees differ entirely between classes. The table below summarizes the general benefit categories each class finds in their Master tree:

Blade Master (evolved Dark Knight)

The Blade Master invests their tree across three pillars: damage increase, attack speed and survivability. Skills such as Increase Attack Speed, Increase Maximum HP and Increase PvP Defense Rate are priorities for competitive PvP builds, while Increase Damage and Increase Critical Damage Rate dominate PvM-focused builds.

Relevant Ancient sets for Blade Master include: Hyon (Dragon), Kantata (Scale), Ceto (Great Dragon) and Aruan (Thunder Hawk) — each with specific set bonuses that interact with Master progression.

Grand Master (evolved Dark Wizard)

The Grand Master tree prioritizes magical power and mana efficiency. Skills such as Increase Wizardry Damage, Increase Mana, Increase Maximum SD and Increase Defense make the Grand Master a long-range damage powerhouse. Sets like Sebone (Bone), Eplate (Energy Plate) and Heras (Ashcrow) pair well with SD and mana Master investments.

High Elf (evolved Fairy Elf)

The High Elf has the most versatile tree: she can specialize in bow damage, group support or a combination of both. Support buff skills like Increase Recovery Speed and Increase Maximum HP/Mana benefit every party member. Relevant Ancient sets include Gywen (Bow), Agnis (Legendary), Drake (Dark Steel) and Sylion (Sunlight).

Duel Master (evolved Magic Gladiator)

The Duel Master has a unique tree that reflects the class's hybrid nature. It accumulates bonuses in physical damage, magic damage and speed, but without the depth of specialization found in other classes. The Chrono (Divine) Ancient set is the dedicated set for Magic Gladiator/Duel Master characters.

Lord Emperor (evolved Dark Lord)

The Lord Emperor tree is oriented around leadership and group buffing. The CMD stat directly influences how many creatures the character can control and the potency of group auras. Anubis and Enis (Red Spirit) are the Ancient sets for this class. Skills like Increase Command and Increase Maximum HP are foundational investments.

Dimension Master (evolved Summoner)

The Dimension Master focuses on curses, ranged damage and debuffs. The Master tree expands the damage of skills like Decay and Chain Lightning. The Ancient sets Gaia (Dark Soul) and Broy (Venom Mist) are available for the Summoner class.

Jewels in the Master Level Context

Master Level progression itself does not require specific Jewels to gain levels, but equipment optimization continues to depend on MU's Jewel system:

Recommended Progression Strategy

The efficiency of Master progression depends directly on where you farm EXP. General recommendations for S6 servers are:

1. ML1–50: Grind in Tarkan or Aida targeting high-HP, high-EXP monsters. Prioritize Master skills that immediately amplify your damage output.
2. ML51–150: Group parties in Kalima 6 or deep Dungeon floors. Survivability skills begin to matter in this range as mob density and damage increase.
3. ML151–300: Elite maps such as La Cleon or maximum-level Blood Castle events. Optimize equipment with Harmony Jewels to maximize damage output per run.
4. ML301–400: Intensive grinding with an organized party. Only the highest EXP-per-kill monsters justify the time investment at this range.

The Master Level system is what separates ordinary characters from true veterans in MU Online. With proper skill tree planning and consistent grinding, your character will reach a tier of power that is entirely out of reach at the base level cap — ready to tackle the most challenging content the game has to offer.

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