The Gun Crusher of MU Online is Season 16's class and the game's only magic gunner: ranged, Energy-scaled, firing plasma fields and elemental rounds from a weapon nobody else can hold. This guide covers him end to end — the skill bar grouped by element, both trees, the magic gun ladder, wings from our server's item table, and the buff that can backfire.
| Gun Crusher at a glance | |
|---|---|
| Added | Season 16 — selectable at creation on current files |
| Base stats | Str 20 / Agi 18 / Sta 20 / Ene 25 — 5 points per level |
| Growth | +1.5 HP per level, +2 HP per Sta, +1.5 mana per level, +2 mana per Ene |
| Role | Ranged attacker, wizardry damage scaled on Energy |
| Weapon | Magic gun — exclusive to the class |
| Party trio | Gun Crusher + Rune Wizard + Grow Lancer |
Who the Gun Crusher is
The MU Empire, losing ground to Kundun, founded the Imperial Task Force in secret and raised abducted orphans through brutal training. Fisher, the boy with the fiercest eyes, survived it — and lost himself doing so. Mechanically he is a magic gunner: every damage number on his bar is wizardry rather than weapon attack, which is why Energy feeds everything and the gun is closer to a staff that shoots.
The skill bar, grouped by element
A water set, a fire set, one neutral field and a buff — with the client's own numbers on the rows we can verify:
| Skill | Element | Where it comes from | What it does |
|---|---|---|---|
| Dark Plasma | None | Marce, Elbeland | Drops a plasma field on a target or a spot — the client rows it at level 130, 300 mana |
| Ice Break | Water | Marce, Elbeland | The water opener — pairs with the freeze debuff line |
| Death Fire | Fire | Marce, Elbeland | The fire spender of the pair |
| Ice Blast | Water | Ruud shop | The stronger water skill — client rows it at 150, 140 mana |
| Bursting Flare | Fire | Ruud shop | The stronger fire skill — client rows it at 160, 180 mana |
Fixed Fire arrived later and is the only thing on the bar you can turn against yourself: it is a toggle, not a timer, and the defence it gives up is real. Treat it as a boss-window button you switch off before walking into the next pack.
Both skill trees, from the client's own files
The master tree carries the usual Strengthener, Proficiency and Mastery nodes: Ice Break and Death Fire gain skill attack power and a tile of range, Death Fire also +10 attack speed, Dark Plasma gains targets, duration and range — and two Magic Gun nodes require the gun equipped, so never bank points before you have one.
The enhancement tree opens three branches at the fourth class change, one per element. Each branch runs the same seven nodes — skill attack power, damage count +1, additional damage rate, target +1, range +1, skill damage and weapon attack power — plus a debuff pair: deadly poison and freeze on Dark Plasma, the same two on the other branches. The client's enhancement rows for him:
| Tree row | Unlocks | Mana |
|---|---|---|
| Magic Arrow Enhancement | 100 | 10 |
| Plasma Ball Enhancement | 160 | 40 |
| Lightning Storm Enhancement | 160 | 300 |
| Dark Plasma Enhancement | 130 | 300 |
| Ice Blast Enhancement | 150 | 140 |
| Bursting Flare Enhancement | 160 | 180 |
And the Season 16 files ship one more borrowed-behaviour line: Bursting Flare of Gale — when it fires, the Ice Blast ability is implemented and +15 attack speed applies.
How to build a Gun Crusher
The official ratio: 55% Energy / 25% Agility / 15% Strength / 5% Stamina. Energy is the damage stat; Agility carries the gun requirements; Stamina is nearly an afterthought at 5%.
| Where you are | What to feed | Why |
|---|---|---|
| Always first | Energy | Every damage number on the bar is wizardry |
| As the guns ask | Agility | The magic gun tiers gate on it |
| Barely | Stamina | +2 HP per point when the deaths get expensive |
| Endgame, max stats 32,700 | Everything, in that order | On our server every stat caps at 32,700 and the trees take over |
Gear: guns and armour on one ladder
The gun ladder runs Entropy (75) → Frere → Weiwen → Cannon through the socket tiers at 380 and 400, then the mastery line: Bloodangel, Darkangel and up through Silver Heart and Roaring Manticore. The Prear set is his first full armour — the only five-piece set, gloves included; from Blood Angel up the sets drop to four pieces and no gloves. Later named sets: Baiwen's Scale Gunner from level 1 and the Season 16 Burning Frere line.
The wing ladder, with server numbers
He rides the caster ladder — Heaven, Soul, Magic — then his own line. Levels and defence read straight from our server's item table:
| Wings | Level | Defence | Notes |
|---|---|---|---|
| Wings of Heaven | 150 | 10 | Shared with every magic class |
| Wings of Soul | 215 | 30 | Shared caster second tier |
| Wings of Magic | 290 | 37 | Shared caster third tier |
| Wings of Hit | 400 | 60 | Exclusive — the third-class wing |
| Blood Wings | 800 | 170 | Exclusive — the fourth-class wing |
| Crimson Wings | 1200 | 175 | Exclusive — the fifth-class wing, the top of the ladder on current files |
Class changes and the party trio
His ladder runs Gun Crusher → Gun Breaker → Master Gun Breaker → Heist Gun Crusher → Magnus Gun Crusher — the last three quest-gated at 400 / 800 / 1200. His official trio is the late-generation set: Gun Crusher + Rune Wizard + Grow Lancer. PvE he is a field-caster with a gun: Dark Plasma on the pack, the elemental pairs on cooldown, Fixed Fire only when the room is safe. PvP the freeze/poison debuff pairs from the enhancement tree are the whole kit — he wins fights the tree sets up, not fights he out-stats.
Play the Gun Crusher on a live server
The Gun Crusher is live and directly selectable on our Season 22 server — high exp, max stats 32,700, events and mini-bosses all day, and the full Season 16 content he shipped with.
- Create your account — it takes about a minute
- Download the client and pick the Gun Crusher on the creation screen
- New to MU Online entirely? Start with how to start, then come back and open fire
Every skill on the bar, read from our server's own files
The complete list, pulled straight from the skill table our server runs — level to learn, base damage, mana and AG cost, range, the stat gate, the +1-damage-per-X scaling and the imprint value. If another site disagrees with a number here, ours is the one the server actually uses.
| Skill | Level | Damage | Mana | AG | Range | Gate | +1 dmg per | Imprint |
|---|---|---|---|---|---|---|---|---|
| Archangel's will | — | — | 100 | 150 | 0 | — | — | — |
| Death Fire | 50 | 160 | 5 | 1 | 6 | ENE 100 | 100 Energy | +130% |
| Death Ice | 50 | 160 | 5 | 1 | 6 | ENE 100 | 100 Energy | +130% |
| Ice Break | 50 | 180 | 7 | 1 | 6 | ENE 295 | 100 Energy | +130% |
| Magic Arrow | 50 | 10 | 5 | 0 | 8 | ENE 60 | 500 Energy | +100% |
| Fire Burst | 74 | 150 | 8 | 0 | 6 | ENE 79 | 80 Strength | +135% |
| Chaotic Diseier | 100 | 220 | 12 | 4 | 6 | ENE 84 | 80 Strength | +130% |
| Fixed Fire | 100 | — | 100 | 50 | 0 | ENE 300 | — | — |
| Dark Plasma | 130 | 300 | 30 | 20 | 7 | — | 100 Energy | +130% |
| Plasma Ball | 130 | 40 | 120 | 35 | 8 | ENE 300 | 200 Energy | +110% |
| Bursting Flare | 160 | 180 | 25 | 15 | 6 | ENE 1075 | 100 Energy | +130% |
| Ice Blast | 160 | 140 | 13 | 10 | 6 | ENE 1000 | 100 Energy | +130% |
| Lightning Storm | 160 | 300 | 80 | 7 | 8 | ENE 1080 | 100 Energy | +115% |
| Wind Soul | 160 | 130 | 35 | 17 | 6 | STR 717 | 100 Strength | +120% |
The master skill tree (3rd class), node by node
Unlocked at the third class change (level 400); every level from 400 to 800 grants one point. Three branches, with the node names read from our server's own tree file:
Defense branch: Durability Reduction (1), PvP Defense Rate Increase, Maximum SD increase, Auto Mana Recovery Increase, Durability Reduction (2), SD Recovery Speed Increase, Automatic HP Recovery Increase, Defense Increase, Elemental DEF Increase, Automatic AG Recovery Increase, Durability Reduction (3), Defense Success Rate Increase, Armor Set Bonus Increase, Vengeance, Increase Energy Stat, Increase Vitality Stat, Increase Agility Stat, Increase Strength Stat, Wings of Hit Defense Strengthener, Wings of Hit Attack Strengthener, Steel Armor
Attack branch: Attack Success Rate Increase, Magic Mastery, Fixed Fire Strengthener, Dark Plasma Strengthener, Fixed Fire Mastery, Dark Plasma Proficiency, Maximum Life Increase, Dark Plasma Mastery, Maximum Mana Increase, Ice Break Strengthener, Maximum AG Increase, Ice Break Mastery, Max HP Boost, Death Fire Strengthener, Death Fire Mastery, Death Ice Strengthener, Death Ice Mastery
Weapon branch: Attack Rate, Magic Gun Strengthener, Magic Gun Mastery, Mana Reduction, Monster Attack SD Increment, Monster Attack Life Increment, Minimum Wizardry Increase, Monster Attack Mana Increment, Maximum Wizardry Increase, Increases critical damage rate, Restores all Mana, Restores all HP, Absorb Life, Increases excellent damage rate, Restores all SD, Increases double damage rate, Absorb Shield, Increases chance of ignore Def
What each stat point does
The classic MU formulas, with this class's damage stat in the first row. Per-point HP and mana are in the table at the top of the page.
| Stat | What each point gives |
|---|---|
| Energy (damage stat) | +1 max wizardry/curse damage per 4 points, +1 min per 9 |
| Agility (everyone) | +1 defense per 3 points, +1 defense rate per 4, +1 attack speed per 20 |
| AG (skill stamina) | +1 per 3 Agility, per 4 Vitality, per 5 Strength; +0.15 per Energy |
| SD (shield) | +1.2 per stat point and per level; +1 per 2 defense |
Class specialization and the EXP party
Two systems the stat screen never explains. First, specialization: as the class damage stat climbs past 1,500 and then 2,000, the character earns bonus damage on the same skill set — up to +45% at the top tier. Second, the classic EXP-party combos are Dark Knight + Dark Wizard + Fairy Elf and Dark Lord + Summoner + Magic Gladiator/Rage Fighter — this class belongs to neither, so build parties from the combat trios above.
Ability cards (5th class): Bursting Flare of Gale.
MU Online Gun Crusher FAQ
What is the Gun Crusher in MU Online?
The Gun Crusher is Season 16's class and the game's only magic gunner: a ranged attacker whose damage is wizardry scaled on Energy, firing from a magic gun no other class can equip. His story name is Fisher, first of the Imperial Task Force.
How do you unlock the Gun Crusher?
You don't — he is a base class on current files, selectable straight from the character creation screen.
What weapons does the Gun Crusher use?
Magic guns, exclusively: Entropy, Frere, Weiwen and Cannon in the early tiers, socket guns at 380/400, then the Bloodangel-through-Manticore mastery line.
What is the best Gun Crusher build?
55% Energy / 25% Agility / 15% Strength / 5% Stamina. Every damage number on his bar is wizardry, so Energy feeds everything; Agility feeds the gun requirements.
What does Fixed Fire do?
It is a toggle buff, not a timer — attack power up, real defence given up. Switch it on for boss windows and off before pulling the next pack.
Is the Gun Crusher good for PvE or PvP?
PvE he fields plasma and elemental areas from range. PvP the freeze and deadly-poison debuff pairs on his enhancement tree do the winning — he wins fights the tree sets up.
Which classes party with the Gun Crusher?
The official late-generation trio: Gun Crusher + Rune Wizard + Grow Lancer.