MU Online Season 19 Guide

Season 19 (2023-2024) is the season of the 5th class change. Beating Unis three times in one-minute duels unlocks Extra Damage - Nuke, Bolt and Area - and opens the Ability Enhancement Core, a card board that keeps growing every fifty levels. Around it: 5th wings, Apocalypse 9th mastery weapons, Ancient Lightning 10th armour and Lightning 10th weapons, Tormenta Island and Twisted Kalutan, the Leviathan Guardian, a 7th mastery earring, Artifact grades, and renewals for the Grow Lancer and the Dark Lord.

The 5th class change

Groups of monsters carrying a new kind of power appeared across MU, and matching them meant finding power of the same order. That research produced Extra Damage, and Unis — elder sister of Sent, one of the twelve Priests of Light, and a war-scythe fighter in her own right — was sent to Devias to pass it on.

Talk to Unis in Devias (193, 12) at level 1,200 or above to enter the Space of Qualification, where you can party up, and from there the Space of Trial. Three quests follow, each a duel against Unis while Burning Kethotum monsters swarm you, and each on a one minute clock:

Clearing the third gives the 5th class change itself, 200 stat points, the 5th tree, and the three Extra Ability Cards (Nuke, Bolt, Area).

Extra Damage fires off your enhancement skills (4th class) and ability skills (5th class), and each type has its own hit effect and damage-number colour. It is blocked by the matching new stat, Extra Damage Defence. To use any of it you equip one of the three cards in the Ability Enhancement Core.

A fourth quest follows for the class's own mount. Hand Unis 300 Jewels of Creation to have the Giant built, then beat her once more inside a minute while riding it. You get one of three Giants at random. It rides with Ctrl+X, improves movement speed, and cannot be used at the same time as a muun, Guardian or Fenrir.

Ability Enhancement

After the 5th class change, Ability Crystals are crafted into Ability Cards and slotted into the Ability Enhancement Core. Crystals drop in hunting grounds of Burning Kethotum grade and above — Burning Kethotum, the Kanturu Underground Facility, Ignis Volcano, Bloody Tarkan and Tormenta Island — and each character can collect 1 Ability Crystal and 4 bound Ability Crystals per day. Ability Enhancement Stones, for levelling cards, come from crafting crystals or from converting a card back.

The board has four kinds of slot, all crafted at the Chaos Goblin in Noria (180, 103):

Cards level up to 5, and the Ability Card Book lists everything obtainable for your class, what you own and what is equipped, with filters and a right-click menu for levelling up or converting back. Part 2 added a skill card conversion: one Ability Crystal and 1,000,000 zen turns a skill card you do not want into another one for the same class.

5th wings

5th wings are a two-step craft, and the first step is the expensive one.

Golden Crests and Uriel's Feathers drop at a low rate in elite zones. 5th wings have no Luck option, and the class, options and Jewel of Life option are all random on creation.

Two random options are rolled from the usual list — full mana or life recovery +7%, reflect +7%, ignore defence +7%, excellent or double damage rate +7%, attack speed +12, or +65 to one stat. The new line is damage correction, which rises to 16 at +15.

Wing Cores are the other half of the system: a core crafted from a blueprint (the Type 1 blueprint is 50,000 Ruud from the Ruud shop) attaches to a 5th wing and can be detached again by right-clicking it in the wing window. Each core fits a specific short list of wings and capes, so a Pure Wings of Nobility Core will not go into just anything.

Apocalypse and Lightning — the 9th and 10th mastery tiers

Two more mastery rungs arrived this season. Both craft at 100% from a +11 / 16 option base at the Chaos Goblin, keeping the item type, Luck and Excellent options.

Apocalypse weapons need level 1,400 and share one Excellent block: excellent damage rate +10%, attack or magic speed +7, life and mana of (stat/8) per kill, +3 per 20 levels and +85 flat.

Ancient Lightning armour needs level 1,500, and its four-set option is the biggest in the game so far: mastery critical and excellent damage, ignore enemy defence +9%, mastery all stats, mastery base defence, critical and excellent damage rate +20% each, triple damage +14%, mastery max life, mastery damage decrease, and mastery enhancement-skill damage.

Tormenta Island

Before Elbeland existed, Elbe fell to Lemuria and the Elbeins fled to the island floating above Tormenta Island, shielding it with the Veil of Iruha. Unable to break the veil, Lemuria loosed its minions onto Tormenta Island itself — the energy source below — and sealed the whole place. The Elbeins slept until the seal weakened and they woke as present-day Elbeland. Most of Lemuria's minions died down there; the ones that fused with the island's energy became spirits, and they run it now.

The elite zones sit at fire (148, 233), water (25, 198), earth (188, 11), wind (242, 158) and dark (55, 15), with elite versions of all three monsters at level 860. As always their elemental debuff pair lands with a 100% chance and is reduced by a Guardian's elite resistance option.

Twisted Kalutan

Kalutan sat behind high mountains in the east, closed off and barren, with the Grey Tower in its north-west full of demons nobody could approach. Outsiders landed, the nomads allied with them, and together they cleared the tower — but subduing the demons cracked the circle of Kardamahal that sealed far worse things underneath. The circle broke with an enormous explosion, the unsealed demons rushed the surface, and the terrain twisted into what is there now.

This is also the first hunting ground where monsters carry elemental critical damage rate resistance on top of the usual excellent, critical, absorption and debuff resistances.

The Leviathan and the Earring of Verdure

The sixth Guardian is the Leviathan, upgraded from the 5th at the Trainer in Lorencia (122, 110) with the Seal of Leviathan plus Bless ×20, Soul ×20, Chaos ×1, Creation ×1, at 100% / 90% / 80% / 70% / 60% from a +15 down to a +11 base. A Leviathan (Rare) with the same stats turns up at a low rate.

The 7th mastery earring is the Earring of Verdure, upgraded from a +11 to +15 Earring of Bond with the Verdure Crafting Mould — 25,000 Ruud from Priest James in Elbeland (32, 239) — plus Bless ×20, Soul ×20, Chaos ×1, Creation ×1, at the usual 60–100% by base level.

Wearing both sides gives ignore enemy defence 7%, all stats +10 and mastery damage +90.

Grow Lancer and Dark Lord renewals

Two classes were rebuilt this season. The Grow Lancer gained the Combat Power (%) stat introduced in Season 18, carried by its socket, Absolute and mastery lances, and two new skills from NPC James:

Both get master-tree and enhancement-tree branches; Over Sting's adds 2 extra damage instances, +1 tile of range and +1 target, and carries freeze and bleed.

Eight Mastery Lancer Shields arrived alongside, one per tier from Blood Angel to Brilliant, each with reflect 5%, defence success rate +10%, max life and mana, and an Obsidian effect bonus that climbs from +30 to +195.

The Dark Lord renewal raised his attack-speed ceiling to 290, gave him Combat Power on thirteen weapons, and upgraded his pets. A level 70 Dark Spirit plus 100,000,000 zen and a jewel makes a Divine Spirit: Jewel of Bless or Soul at 45% for the Fire version, Jewel of Creation at 5% for the Ice one. The Divine Spirit caps at 100,000 damage with attack speed 200 and brings Divine Force; the Divine Horse (a 50% craft) caps at 1,500 defence and 500 elemental defence and brings Divine Aura. In a safe zone both pets drop to soul form beside him. New skills came too — Lord Dignity, Spirit Blast, Battle Glory and Crown Force — along with nine Lord Shields and a six-skill rebalance.

Artifacts, levels and rebalancing

Artifacts gained a grade, 1 to 10, set when the artifact is created and shown in brackets beside its option (the attack-speed option only goes to grade 5). The new grade upgrade combination at the Chaos Goblin fuses two artifacts of the same type, option and grade into one of the next grade up. Enhancement level does not matter for the main material — a +9 grade 1 plus a +1 grade 1 gives a +9 grade 2 — and a failure destroys only the sub material. Artifact creation was retuned from 80% to 70% at the same time.

Levels and rewards

The cap moved twice again: 1,550 → 1,600 in Part 1 and 1,600 → 1,650 in Part 2, each with a Gremory Case reward box on the usual 30-day claim and 14-day validity.

Hunting grounds rebalanced

With the 5th class change landing at level 1,200, the whole top end of the level curve was redrawn. Entry levels came down on the middle maps and went up on the newest ones:

Monster stats and experience were adjusted to match. Two other changes worth knowing: the Highest Magic Stone — the 5th-wing material — is crafted from a level 9 or higher, 16 option or higher item and always yields 3, and Boss Battle Together was restricted to the Gold channel.