MU Online Season 4 Guide

Season 4 is the socket season. Seeds are extracted from your old Excellent and Set gear, fused with Spheres into Seed Spheres, and mounted into socketed items to build the options you actually want. Alongside it: the frozen map of Laclion with the Selupan boss in its hatchery, twenty new socket items, rank 4 of the master skill trees, seven new class skills and the Summoner's Lagle.

The socket system

The socket system lets you put the options you want onto an item by mounting an attribute item — a Seed Sphere — into an empty socket. The whole loop runs extraction → synthesis → mounting → destruction, and every part of it (Seeds, Spheres and Seed Spheres) can be sold, bought, traded in personal shops and kept in the warehouse.

1. Extraction

Extraction turns an old Excellent or Set item into a Seed carrying a specific option. It is done at the Seed Master in Elbeland, and the success chance depends on the material's level.

On failure, the Excellent or Set item you fed in drops to a random level between +0 and +2, and every jewel is destroyed.

Synthesis, mounting and destruction

2. Synthesis

A Sphere is a crystal-ball item that holds a Seed. On its own it has no effect and cannot be socketed — Spheres come only from monster drops, Seeds only from extraction. Fuse the two at the Seed Master and you get a Seed Sphere, which inherits the Seed's option and carries a numeric value. Spheres are graded by strength, and a higher grade means better option values; only one grade of Sphere shipped in this update.

If synthesis fails, everything you put in is lost.

3. Mounting

Mounting puts a Seed Sphere into an empty socket, and is done at the Seed Researcher in Elbeland. Weapons only accept Fire, Ice and Lightning; armour only accepts Water, Wind and Earth. Materials are the socket item, the Seed Sphere, a Jewel of Chaos, a Jewel of Creation and Zen.

Bonus socket options

The order you mount them in matters. Certain three-attribute combinations roll an extra option on top of the Seed Spheres themselves.

Set socket options

Counted across every socket item you are wearing, not per item.

4. Destruction

Destroying a mounted Seed Sphere strips its option off the item. The Seed Sphere is gone for good, and apart from the item itself the only cost is Zen. Also handled by the Seed Researcher.

Socket items

Socket items come from monster drops and drop only in Laclion. They roll the same options normal items do — additional attack power, additional defence, additional magic power, additional defence rate, Luck and automatic HP recovery. Each one carries 1 to 3 sockets, fixed at the moment it drops and impossible to change afterwards; bows can carry up to 5.

Every one of them has a wear restriction of level 380.

Each cell reads item level / defence. Every piece is wearable at level 380. The two Magic Gladiator sets are four-piece — no helm.

Laclion and Selupan

The hatchery is the point of the map. You can move in and out of it freely until Selupan appears; after he spawns and a certain amount of time has passed you can neither enter the hatchery nor use Sherman.

The Selupan fight

Selupan appears when you destroy the spider eggs inside the hatchery. For 5 minutes after he spawns you can still move freely; after that the entrance closes and whoever is inside is committed. He uses powerful and varied attacks and drops high-grade items.

Selupan's attack and defence values were left blank in the original patch note — only his level, health and defence success rate were published.

New class skills

Seven stronger skills were added for the existing classes. They are not trained — the orbs, spell books and scrolls that teach them drop from monsters of level 100 and above.

The Summoner update

The Summoner got a pet, three skills and a gear line of her own.

Lagle was contracted in the other world of Kalun and is known as the guide of misfortune. Wherever it appears, plague and decay spread, and human envy and anger run out of control. Equip the Book of Lagle and you can cast Pollution.

Master level — rank 4

Rank 4 of the master skill trees was revealed. Two rules govern the whole board: a skill your character has not learned cannot be enhanced, and you can pick up weapon skills without the weapon equipped — you just cannot use them without it.

Event map schedule and rewards

The event map timetable was rewritten, cutting the total number of daily openings from 42 to 36 and rebalancing which map runs when.

Experience from event maps below Master Level grade was increased, and the materials for the entry tickets stopped dropping from monsters — you now buy them from the NPC shop and craft the tickets yourself.

Chaos Castle rewards

Among the first-place rewards, the chance of a Jewel of Creation dropped slightly and the chance of a Jewel of Life rose slightly.

Other system changes