Castle Siege Guide: Attack Tactics — How to Conquer the Castle

Castle Siege is the most strategic PvP event in MU Online S6. It takes place weekly — typically on Saturdays — and lasts exactly 2 hours. For the attacking guild, the goal is simple in theory: destroy the Seal of RI inside the castle. In practice, it requires team coordination, role-specific builds, and knowledge of the map's critical positions.

This guide covers attack tactics exclusively. If you already know how to register for the event, here you will learn how to win it.

Event Structure for Attackers

Castle Siege takes place on the Land of Trials map. Attacking guilds must:

1. Register the guild at the Elf Soldier NPC in Lorencia before the deadline (typically Friday night)
2. Be present on the map when the event starts
3. Destroy the Castle Gate to enter the courtyard
4. Destroy the Seal of RI to conquer the castle

Recommended Builds for Attacking

Each role in the attack group requires a different stat distribution. Recommended allocations at level 400:

Blade Master — Gate Tank (Role: Opener)

Level 400, no resets:
STR: 250 (high physical damage + Excellent weapon requirements)
AGI: 120 (defense + attack speed)
VIT: 200 (high HP to absorb Gate damage and defender pressure)
ENE: 30 (functional minimum)

Equipment:
- Dark Steel Armor +11 +Luck +Excellent (damage reduction)
- Dark Steel Gloves +11
- Sword Dancer +13 +Luck (maximum attack speed)
- Dragon Slayer Shield +11 +Luck
- Ring of Ice (crowd control on defenders)
- Wing of Dragon L2 or Wing of Storm L3

The Twisting Slash skill hits multiple targets and is ideal for clearing guards at the Gate entrance.

Grand Master — Gate Destroyer (Role: Area DPS)

Level 400, no resets:
STR: 30 (equipment minimum)
AGI: 50
VIT: 80 (enough with Elf buff)
ENE: 500+ (maximum damage on Ice Storm and Thunder Ball)

Equipment:
- Legendary Staff +11 +Luck +Excellent (ENE bonus)
- Legendary Set complete +9 or higher
- Necklace of Ice
- Wing of Eternal L2 or Wing of Illusion L3

High Elf — Buff Support (Role: Sustain)

Level 400, no resets:
STR: 30
AGI: 200 (bow requirement + attack speed)
VIT: 150 (survivability)
ENE: 200 (buff power: Defense Up, Damage Up)

Equipment:
- Silver Bow +11 or Superior Bow +11
- Wind Set complete +9
- Wing of Fairy L2 or Wing of Hope L3

The High Elf's Defense Up and Damage Up buffs increase the entire party's defense and attack by up to 25%. Never begin pushing the Gate without at least one High Elf buffing the group.

Duel Master — Defender Eliminator (Role: Assassin)

Level 400, no resets:
STR: 200 (physical damage for Plasma Storm and normal attacks)
AGI: 80
VIT: 100
ENE: 250 (Plasma Storm and Fire Slash power)

Equipment:
- Legendary Sword +11 +Luck
- Grand Soul Set complete +9
- Wing of Ruin L2 (MG has no L1 Wing, goes directly to L2)

Lord Emperor — Area Controller (Role: Offensive Support)

Level 400, no resets:
STR: 100
AGI: 50
VIT: 100
ENE: 150
CMD: 300 (summons: Horse + Dark Raven, aura skills)

Equipment:
- Scepter of Abyss +11 +Luck
- Dark Lord Set complete +9
- Cape of Lord L2

The Dark Raven summoned by the Lord Emperor automatically attacks nearby defenders. With 300 CMD, the Raven deals relevant damage and distracts defending Blade Masters who try to kill the attacking Guild Master.

Three-Phase Attack Formation

Phase 1 — Gate Destruction (0 to 40 min)

The Castle Gate has high hit points and can only be destroyed by the attacking guild. Organize the group as follows:

STANDARD GATE FORMATION:
[Blade Master Tank x2] → front line, absorbing defender damage
[Grand Master x2]      → flanks, maintaining Ice Storm on the Gate
[High Elf x1-2]        → safe rear position, buffing the whole party
[Lord Emperor x1]      → flank, summoning Raven and eliminating key enemies
[Duel Master x2]       → sides, eliminating flanking defenders

Gate attack sequence:

1. High Elf applies Defense Up + Damage Up on everyone
2. Blade Masters advance and position at the Gate
3. Grand Masters activate Ice Storm on the Gate
4. Lord Emperor summons Horse and Dark Raven, keeps Aura active
5. Duel Masters hold the sides, eliminating defenders who try to flank
6. Renew High Elf buffs every 60 seconds

Phase 2 — Entry and Internal Control (40 to 80 min)

Once the Gate falls, part of the group advances into the inner courtyard. Never push the entire group in at once — keep 2-3 members covering the entrance to prevent regrouped defenders from cutting off retreat.

INTERNAL SPLIT:
Group A (5 members): advances toward the Seal of RI
  - Guild Master (any class)
  - 2 Blade Masters as escort
  - 1 High Elf to maintain active buffs
  - 1 Grand Master for area DPS on internal defenders

Group B (3 members): holds the entrance
  - 1 Blade Master tank
  - 1 Duel Master
  - 1 Lord Emperor with active Raven

Phase 3 — Seal of RI Destruction (80 to 120 min)

The Seal of RI is located in the center of the castle in a room with limited space. This is the most critical phase.

Guild Master protection protocol:

1. Guild Master positions at the center, attacking the Seal
2. Two Blade Masters stand directly beside the GM, blocking physical access
3. High Elf maintains active buffs on the GM at all times
4. Grand Master uses Ice Storm on defenders entering through the door
5. Duel Master and Lord Emperor eliminate any defender who gets through
6. If GM is being focused heavily: entire group switches priority to that attacker

Critical Map Locations in Land of Trials

Common Mistakes by Attacking Guilds

1. Pushing without High Elf buffs Without Defense Up and Damage Up, the group takes 25% more damage and deals 25% less. Buff first, always.

2. Putting the Guild Master at the front The GM is the only one who can destroy the Seal. Keep them in the rear during Phases 1 and 2.

3. Splitting the group before the Gate falls Entering the courtyard in disorganized pairs is suicide. The split into Group A and Group B only happens after the Gate is down and the group reorganizes.

4. Neglecting the left side corridor Experienced defenders use that corridor to flank groups focused on the Gate. Keep at least one Duel Master sweeping that route.

5. Forgetting to renew buffs Defense Up lasts approximately 60 seconds. Establish a renewal routine — the GM reminds the High Elf if needed.

Allying with Other Guilds

You can form an alliance with other guilds in Castle Siege. Allied guilds attack together, but only one guild conquers the castle — whichever Guild Master destroys the Seal.

Role split in a two-guild alliance:

Main Guild: attacking Guild Master + Blade Master escort
Allied Guild: Grand Masters for the Gate + High Elfs for support

Pre-Event Preparation Checklist

[ ] Guild registered at Elf Soldier before the deadline (Friday night)
[ ] All members with equipment +9 or higher
[ ] High Elfs with minimum 200 ENE for effective buffs
[ ] Blade Masters with minimum 200 VIT for Gate tanking
[ ] Grand Masters with 500+ ENE for relevant Ice Storm damage
[ ] Guild Master aware they must not die in Phase 3
[ ] Voice channel (Discord) active with all members
[ ] HP and Mana Potions: minimum 200 of each per member
[ ] Wings equipped on all members
[ ] Roles defined and communicated before the event starts

Following this structure, your guild reaches the Seal of RI with sufficient time and strength to complete the conquest. Castle Siege rewards planning: organized guilds beat larger guilds with no coordination.

Perguntas frequentes