Summoner – MU Online Class Guide (Build, Skills & Evolutions)

Summoner evolution line

1. Summoner
2. Bloody Summoner
3. Dimension Master
4. Dimension Summoner
5. Endless Summoner

Names as listed in the server's class table; evolutions upgrade the same class and never change it into another one. Realm rules and the /evoquest command

Summoner at a glance

Webzen uses the same names for the first four stages: Summoner, Bloody Summoner, Dimension Master and Dimension Summoner. Endless Summoner is the name the server's class table gives the 5th stage.

The class was introduced in the Season 3-4 era and was already in the game when Webzen opened the global Season 4 service on 21 May 2009.

Other spellcasters to compare: the Dark Wizard, Rune Wizard and Lemuria Mage. See all classes.

Evolution path: Summoner to Endless Summoner

What each stage adds on this server, per the class flags in the server files:

1st: Summoner

The core spell book, from Fire Ball (level 5) to Innovation (level 111): 32 base-stage entries in SkillList.xml. Your first wing is Wings of Curse (level 150).

2nd: Bloody Summoner

Adds Plasma Storm (level 110), Wings of Despair (level 215) and the Demonic, Storm Blitz and Eternal Wing sets.

3rd: Dimension Master

Opens the master skill tree, Death Scythe (level 85) and Fire Beast and Aqua Beast (level 160). Wings of Dimension (level 400), the Succubus set and the Bloodangel to Holyangel sets need this stage.

4th: Dimension Summoner

Unlocks the 4th-class enhancement tree, 117 Summoner entries including Wizardry / Curse DMG Increase, and the sets from Awakening Soul up to Lightning (levels 900 to 1500).

5th: Endless Summoner

The server files contain 5th-stage Summoner content: the skills Fire Beast of Saturation and Death Scythe of Fury, Wings of Barrier (level 1200), the Temple Guard gear (level 1500) and the Imperial Summoner gear (level 1600), sticks and books included. Webzen's game calls this step the 5th class advancement.

Shortcut: the /evoquest command completes the class quests up to the 4th stage. Active Summoners of every stage show up on the Permanent Realm ranking.

Summoner stat build (Energy first)

Summoner spells in SkillList.xml require Energy and no Strength or Agility, so Energy is both your damage stat and your unlock key. Thresholds to plan around:

• 150 Energy: Drain Life
• 180: Sleep
• 245: Chain Lightning
• 300: Explosion, Berserker, Darkness
• 375: Damage Reflection
• 416: Requiem
• 542: Pollution
• 663: Weakness, Innovation
• 823: Lightning Shock
• 930: Death Scythe
• 1220: Fire Beast, Aqua Beast

Each stat caps at 60,000 on both realms, so the splits below, our recommendations rather than a formula, matter most in the first resets.

Energy PvE / farming build

Put most points into Energy, enough Vitality to survive boss hits, and only the Strength and Agility your stick, book and set ask for. The weapons set the bar: early sticks need 13-19 Agility and the summon books 20-30 (Book of Lagle 30), against 11 and 13 for the Bloodangel Summoner helm and armor. From Blue Eye (level 1000), sticks need 157-159 Strength and 62-64 Agility, books 110-118 Agility.

Energy + Agility PvP build

Energy still comes first, but more points go into Vitality and some into Agility: staying alive long enough to land Sleep and Innovation matters more than raw damage.

Beginner build for the first resets

1. Pour points into Energy until Chain Lightning (245) unlocks.
2. Add Vitality whenever you die too often at your spot.
3. Push Energy to 663 for Weakness and Innovation.
4. Use Berserker with care: by design it trades defence for damage.

Stat commands on MUOnline.ai

Type /addene X, /addvit X, /addagi X or /addstr X to spend X points, or /addstr auto X to auto-add points while leveling. For a deeper plan, read the Summoner curse build guide, the Summoner master skill tree guide or the general Summoner guide.

Summoner skills: curses, damage and book skills

Base damage is the SkillList.xml value before stats and gear, not your in-game hit.

Curses and debuffs

• Sleep: hard lockdown on one target.
• Weakness: lowers the target's damage.
• Innovation: lowers the target's defence.
• Damage Reflection: turns incoming hits back on the attacker.
• Berserker and Darkness: self-buffs; Berserker raises damage at a defence cost.

Damage spells

Fire Ball, Power Wave, Meteorite and Ice are shared with the Dark Wizard and carry the first levels. Drain Life deals damage and heals you, Chain Lightning bounces through packs, and Lightning Shock has the highest base damage of the core spells.

Book (summon) skills

Explosion, Requiem and Pollution come from the summon books: Book of Shamut, Book of Neil and Book of Lagle. The server spells the first one Shamut; Webzen writes Sahamutt.

Master skill tree highlights

The 3rd-class tree strengthens your key spells: Sleep, Chain Lightning, Lightning Shock, Drain Life, Weakness and Innovation Strengthener, plus Innovation and Drain Life Mastery, Blind, Pain of Curse, Pollution Mastery and Minimum / Maximum Wizardry-Curse Increase. In total 237 SkillList.xml entries carry a Summoner flag; browse them all on /skills.

Sticks, books, sets and wings

Sticks (left hand)

Early sticks by drop level: Mystery Stick (28), Violent Wind (42), Red Wing (59), Ancient (78) and Demonic (100). Storm Blitz and Eternal Wing sticks need level 380, the Summon Spirit Stick level 400.

Summon books (right hand)

Book of Shamut drops from level 52, Book of Neil from 59 and Book of Lagle from 65. The mastery books are Bloodangel (level 400), Darkangel (600), Holyangel (800) and Soul (900).

Summoner sets

Violent Wind, Red Wing and Ancient are 1st-class sets; Demonic, Storm Blitz and Eternal Wing (level 380) need Bloody Summoner; Succubus (level 400) needs Dimension Master. From level 400 the mastery stick and set advance together:

On the Speed Realm Autumn Edition a Blood Angel set waits in your inventory at the start; the Summoner version is usable from level 400.

Wings

• Wings of Curse: level 150, 1st class
• Wings of Despair: level 215, Bloody Summoner
• Wings of Dimension: level 400, Dimension Master
• Wings of Barrier: level 1200, Endless Summoner (5th stage)

This list shows only the wings whose Summoner requirement is confirmed in the item file. Full requirements for every piece are on /items.

Leveling a Summoner on the Permanent and Speed Realm

Permanent Realm (5000x EXP)

The long-term realm: 60,000 max stats, medium jewel drops, harder bosses, and your character stays online for good.

Speed Realm Autumn Edition (99,999x EXP)

Live since Friday 2 October 2026, 16:00 CEST, with 60,000 max stats, more Kingz and Fire Dragon bosses and Icewind Castle 8 times a day. It runs for a few weeks, then you can export 2 characters to the Permanent Realm. Compare realms.

Drain Life keeps you alive early; switch to Chain Lightning for spots once you have level 75 and 245 Energy. In parties your job is Sleep and Innovation on bosses. Find spots by level on /maps, and Blood Castle (22 starts a day) and Chaos Castle (01:00, 15:00, 17:00, 19:00, 21:00 and 23:00 UTC) on /events.

Resets and grand resets

Type /reset at the reset level (/reset auto needs VIP 5). A grand reset needs 20 resets, level 400 and 50,000,000 zen, with at most 20 grand resets per account per 24 hours on each realm. Full rules are on the realm hub.

Summoner in PvP and Castle Siege (our rating)

Our PvP rating (MUOnline.ai's own, not game data) favours the Summoner against Rage Fighter and Grow Lancer and rates Magic Gladiator and Dark Lord as hard matchups.

In duels, Sleep, Weakness and Innovation win the trades. In a pure damage race the class is fragile, which is why the PvP split carries more Vitality.

Castle Siege on MUOnline.ai runs weekly: registration opens at 16:00 UTC on the first day of each 7-day cycle, and the siege lasts 60 minutes, Saturday 21:00-22:00 UTC. A Summoner's job there is Sleep and Innovation on crown holders and switch defenders, with Damage Reflection to survive the push. See the schedule on /events.