MU Online Season 17 Guide

Season 17 (2021-2022) is the only season that shipped two classes at once: the White Wizard Kundun Mephis and the Mage Lemuria, doppelgangers of MU's great villains created to fight the originals. Party them together and the Bond buff fires. Around them the season adds Manticore 7th mastery weapons and Celestial Brilliant 8th mastery armour, the Burning Kethotum and Old Kethotum maps, the Kanturu Underground Facility, the Shining Tail 4th Guardian, the Earring of Enchantment, and a full Elf renewal that finally splits the class into a real attacker and a real support.

Kundun Mephis and Lemuria — two new classes

After Doppelganger Fortress was found in the year 1022 of MU, the Great Sage infiltrated it, learned the doppelgangers' magic, and used relics that Kundun and Lemuria had once handled as the medium to copy them. The copies matched the originals in appearance, memory, ability and personality — but raised under the Great Sage they grew up good, and were sent out to stop the villains they were made from.

The White Wizard is the Dark Wizard's opposite: a staff-and-magic-book caster working in Light Energy, with low defence and very high magic attack. The Mage casts sphere magic through an Orb, and although she is no Elf she carries a set of beginner support buffs. Both scale on Energy, and both are available from the character-creation screen.

Low-level gear comes from Wizard Gilard (119, 111) in Lorencia, and skill books from Wizard Pasi (119, 113) or Tavern Madam Liamon (125, 133).

The Bond

The two classes are master and pupil, and the game rewards playing them together. Put a Kundun Mephis and a Lemuria in the same party and the Bond buff activates for everyone:

Both buffs drop if the party disbands or the pair drift too far apart; the Cord also vanishes in a safe zone, and only your own party can see it. Two Kunduns or two Lemurias get nothing — it has to be one of each.

Separately, old items that carry their names now do something extra when either class equips them:

Skills

Kundun Mephis borrows a dozen Dark Wizard skills — Earth Prison, Illusion, Hellburst, Telekinesis, Mana Increase, Power Wave, Lightning, Teleport, Ice, Twister, Aqua Flash and Blast — and adds five of his own.

Lemuria mixes Dark Wizard and Elf skills with five beginner support buffs and four of her own attacks. The beginner buffs are deliberately weaker versions of the Elf's and do not stack with them:

Weapons, wings and armour

All orbs and magic books run at attack speed 30.

Both classes get a complete ladder of their own armour, from cheap town sets up to the mastery tiers. Defence, in order helm / armour / pants / gloves / boots:

Manticore — the 7th mastery weapons

The 7th mastery weapon is the Manticore, upgraded at the Chaos Goblin in Noria (180, 99) from a Silver Heart weapon at +11 with 16 options or better. The rate is 100% and the item type, Luck and Excellent options are all kept.

Every Manticore weapon needs level 1,200 and carries the same Excellent block: excellent damage rate +10%, attack or magic speed +7, life and mana of (stat/8) per kill, +2.6 per 20 levels and +74 flat attack power or wizardry damage.

The Manticore Quiver's range is printed as 651–637 in the original patch note — maximum lower than minimum — and is reproduced here as published. The Manticore Shield keeps the Faith Knight option and rolls base defence +2.6 per 20 levels, reflect 5%, defence success rate +10%, max life and mana +286 and damage decrease 78.

Celestial Brilliant — the 8th mastery armour

Celestial Brilliant is the 8th mastery set, upgraded 100% from +11 / 16 option Manticore armour with a Soul of Brilliant. Class, slot, Luck and the stat options are kept. Excellent Brilliant armour also drops raw in Burning Kethotum and the Kanturu Underground Facility.

Every set needs level 1,300. Which four pieces you get depends on the class — most wear helm, armour, pants and gloves, the Knight, Fighter and Gun Crusher swap gloves for boots, and the Magic Gladiator has no helm.

The Faith Knight set again goes its own way: critical and excellent damage rate +40% each, Solid Protection party attack power +260, vitality +360, defence +240 and triple damage +7%.

Burning Kethotum and Old Kethotum

Etramu lured Kundun into Kethotum and split the Seal Stone into eight pieces to build the strongest barrier ever cast. It worked: Kundun turned to stone screaming, and the city sank into vanished space. A thousand years later Lemuria stole the self of Gaion's descendant Antonias and brought Kundun back — and Kundun filled Kethotum with gates that call in demons, turning it into a burning battlefield.

Old Kethotum is the same place rebuilt for the mid game — identical monsters at level 195 instead of 585, and a level 700 entry rather than 1,160.

Burning Kethotum's elite zones sit at fire (163, 125), water (214, 228), earth (211, 66), wind (80, 105) and dark (149, 182). All three elites are level 590 and land their elemental debuff pair with a 100% chance on every hit, which a Guardian's elite resistance option reduces.

They drop the usual elite set: Elite Option Change Fragments, Sealed Armour Fragments, Golden Emblems, Elite Guardian Enhancement Stones and the Jewel of Harmony, most with a weekly cap.

The Kanturu Underground Facility

Arca scholars digging in the Kanturu ruins found a door that nothing should have been able to open standing smashed apart, with stairs leading down. They could not go any further — the things born down there were prowling the corridors — so the Noble Alliance sent the knights of MU instead.

It is an elemental hunting ground, and Helper Plus can send you straight to the main or sub-main spot of whichever element you want.

The elite zones are at fire (40, 38), water (18, 215), earth (124, 10), wind (225, 212) and dark (235, 11), and every elite monster is level 620. The debuff table and drop table match Burning Kethotum.

The Shining Tail — 4th Guardian

The fourth Guardian is the Shining Tail, an inventory-equipped mount at level 1,100, with a rarer recoloured Shining Tail (Rare) that has identical stats and turns up at a low rate from the same combination.

Upgrade it from the 3rd Guardian at the Trainer in Lorencia (122, 110) using the Seal of Shining Tail — 50,000 Ruud from Priest James in Elbeland (32, 239) — plus Bless ×20, Soul ×20, Chaos ×1, Creation ×1. A failure destroys the materials and drops the base Guardian to +0.

A successful upgrade rerolls the normal options and always rerolls the elite resistance, so the element you end up defending against is out of your hands.

The Earring of Enchantment

The 5th mastery earring is the Earring of Enchantment, upgraded from a +11 to +15 Earring of Vigour with the Mould of Enchantment — 25,000 Ruud from Priest James in Elbeland (32, 239) — plus Bless ×20, Soul ×20, Chaos ×1, Creation ×1. Left makes left, right makes right, and an earring with three options keeps at least two.

Wearing both sides gives what used to be called the season mastery bonus and is now the earring set option: ignore enemy defence +5%, all stats +8 and mastery damage +70. The ladder now runs Wrath → Ancestors → Honour → Vigour → Enchantment.

Elf renewal

The Elf was finally split into two real builds. The attack Elf stacks Agility and shoots; the support Elf stacks Energy, buffs the party and carries a shield of her own.

For the attacker: crossbow, bow and quiver attack speed went up, the attack speed you get per point of Agility went up, and bows and crossbows now lose durability more slowly. Three skills arrived, all 1,000 Ruud from Priest James in Elbeland:

Raining Arrow gets a full enhancement branch — attack power, damage count +2, additional damage rate, +1 target, splash damage, skill damage and weapon attack power — carrying deadly poison and bleeding.

For the support: Greater Elemental Damage and Greater Elemental Defence (both High Elf, Energy 1,500) raise a target's elemental attack or defence, though they do nothing for anyone not wearing an elemental pentagram. Holy Bolt (High Elf, Energy 1,200, Greater Damage plus 10 points of its mastery) gathers holy energy into a single-target bolt and gets its own enhancement branch with freeze and bleeding. Party Heal was reworked to heal the whole party, with an enhancement node for the amount.

Seven Fairy Shields arrived for the support Elf, each with a base option that strengthens Greater Elemental Defence:

Each also rolls up to two of reflect 5%, defence success rate +10%, max life, max mana and damage decrease, scaling from 165/165/45 on Blood Angel to 286/286/78 on Manticore. Finally the MU Helper gained two more buff slots for the Elf (4 → 6) and a heal-support setting under Party Support › Auto Recovery Settings › Trigger Skill Settings, where Heal and Party Heal can be assigned as the basic and trigger skills.

Levels, rebalancing and quality of life

The cap moved twice: 1,350 → 1,400 in Part 1 and 1,400 → 1,450 in Part 2, each with a season reward box through the Gremory Case — 30 days to claim, 14 days of validity once claimed, and no restoring either if you miss the window.

Both multiply their base ability 20× for 30 days.

Hunting grounds rebalanced

Two old maps were pulled down the level curve so the mid game flows better:

Kubera Mine gives less experience to match the lower levels; you hunt the normal area penalty-free from level 925 and the Abandoned Mine from level 970.

Quality of life

NPC shops gained tabs across the top so a vendor's stock is split into pages instead of one long list. The event inventory got a hotkey, Ctrl + V, which opens and closes it. The MU Helper gained a fourth buff slot (up from three) and a buff range setting, so buffs only go out to party members inside the distance you set.

Two late fixes: a successful 4th wings combination now returns the wings of the class that performed it, rather than a random class, and monsters that will apply a level penalty are now drawn in red both in the move command window and on the game screen, so you can see the problem before you walk into it.