MasterMU Crystal Battle Event Guide
Crystal Battle is a guild-based PvP event where coordination and fast reactions are essential. Protect your Guild Master during the 12-second seal and be the last guild controlling it when the event ends to win one week of exclusive Ice Wind Valley Special Map access.
Crystal Battle Guide Contents
Objective · Rules · Seal Mechanics · Registration · Rewards and Buffs · Special Map
Ice Wind Valley Event Objective
| Objective | Requirement |
| Reach the Seal | The Guild Master must reach coordinate 143, 245 inside Crystal Castle in Ice Wind Valley. |
| Complete the Seal | Remain at the coordinate for 12 uninterrupted seconds. |
| Hold Until the End | The last guild holding the seal when the event ends is declared the winner. |
After a successful seal, players who are not members of the defending guild are teleported to the safe zone. The battle continues until the final moment.
Ice Wind Valley Event Rules
| Rule | Details |
| Guild Only | Only registered guilds participate in Crystal Battle. |
| No Alliance Cooperation | Allied guilds compete independently and can fight each other, unlike Castle Siege. |
| Protect the Guild Master | Protect your Guild Master while targeting the enemy Guild Master. |
| Full PvP Damage | The event has 100% damage enabled, making combat fast and intense. |
Seal Mechanics and How to Break the Seal
Important: If the Guild Master leaves coordinate 143, 245, all accumulated sealing time is lost. Any interruption immediately cancels the seal attempt.
| Interruption Method | Examples |
| Eliminate Guild Master | Kill the Guild Master attempting to complete the seal. |
| Push or Knockback | Lightning, Cyclone, Earthshaker, Lunge or any skill with push/displacement effects. |
Guild Registration
| Registration | Details |
/registerbattle | The Guild Master uses this command when registration opens. |
| Registration Time | Registration opens five minutes before the event starts. |
| Announcement | The Game Master announces when the command can be used. |
| Preparation | The Guild Master must be online and the guild should be ready before registration begins. |
Winning Guild Prize
The winning guild receives exclusive access to the Ice Wind Valley Special Map for one week. Only members of that guild can enter the map during the access period.
Reward Delivery Warning: After Crystal Battle ends, remain on the same map for at least 1 full minute while rewards are delivered. Changing maps during this period prevents reward delivery.
| Result | WCoinC | Goblin Points | Ruud |
|---|
| Winning Guild | 2,000 | 250,000 | 100,000 |
| Losing Guild | 500 | 25,000 | 50,000 |
Crystal Battle Individual Ranking Rewards
The event rewards its strongest combatants through the Top Killer leaderboard.
TOP KILLER
| Rank | WCoinC | Goblin Points | Ruud |
| 1 | 2,500 | 100,000 | 100,000 |
| 2 | 1,200 | 75,000 | 75,000 |
| 3 | 1,000 | 60,000 | 50,000 |
| 4 | 800 | 50,000 | 40,000 |
| 5 | 650 | 40,000 | 30,000 |
| 6 | 550 | 30,000 | 25,000 |
| 7 | 450 | 25,000 | 20,000 |
| 8 | 350 | 20,000 | 15,000 |
| 9 | 250 | 15,000 | 10,000 |
| 10 | 150 | 10,000 | 5,000 |
Weekly Buff for the Winners
The winning Crystal Battle guild receives an exclusive buff that remains active throughout the week.
| Buff | Weekly Bonus |
|---|
| Experience | +10% EXP |
| Damage | +100 |
| Excellent Damage | +100 |
| Critical Damage | +100 |
Winning Guild Special Map
| Special Map Feature | Respawn | Reward or Drop |
| Erohim Bosses | Every 1–3 hours | 200 Ruud per boss |
| Undine Monsters | Every 3 hours | Standard drop table |
| Possible Special Map Drops |
| Greater Spirit Stone · Golden Sentence · Elemental Capsule · Seed Capsule · Elemental Rune · Mithril · Miracle Coin · Bless of Light · Guardian Upgrade Stone · Elite Guardian Upgrade Stone |
Crystal Battle Quick Reference
Register with /registerbattle five minutes before the event → escort the Guild Master to 143, 245 → protect the uninterrupted 12-second seal → cancel enemy seals with a kill or displacement skill → hold the seal at the end to win one week of Special Map access.