REGISTER YOUR GUILD.
CONTROL THE AURAS.
CLAIM THE OBELISKS.
Arca Battle is LigaMU PRO's weekly guild conflict across Acheron and Debenter. Guilds fight for three elemental obelisks, earn a week-long EXP advantage and unlock custom rewards through the Trophies of Battle mix.

Every Saturday at 21:00 server time
The configured event sequence begins at 21:00. Registration is divided into Guild Master and guild-member stages, followed by preparation and the main battle.
| Stage | Duration | What happens |
| Guild Master registration | 10 minutes | The Guild Master registers the guild for Arca Battle. |
| Member registration | 10 minutes | Members of registered guilds confirm participation. |
| Progress preparation | 3 minutes | The event prepares registered guilds and the battle channel. |
| Party preparation | 5 minutes | Guild members regroup before combat. Existing parties are dissolved when entering. |
| Arca Battle | 30 minutes | Guilds attack, defend and occupy the three configured obelisks. |
| Channel closing | 10 minutes | Participants are moved out after the result is finalized. |
Guild registration comes first
Capture and hold the elemental obelisks

Occupation buff and Guild Master Ruud
Ten reward tiers, ten equal outcomes
Use between 1 and 100 Trophies of Battle in the event combination system. The number of trophies selects one of the ten reward tiers. Each tier has its own mix success rate, calculated by the game from its configured base rate and the number of trophies used.
| Trophies | Elemental Rune | Guardian Stones | Golden / Light | Pandora / Steel | Option Pieces | Always In Pool |
| 1-10 | x3 | Enhanced x2 / Elite x1 | Sentence x3 / Bless x2 | Pick 25 / Steel x1 | x5 | Ruud Box 3000 / Shard x1 |
| 11-20 | x6 | Enhanced x4 / Elite x2 | Sentence x6 / Bless x4 | Pick 50 / Steel x2 | x10 | Ruud Box 3000 / Shard x1 |
| 21-30 | x9 | Enhanced x6 / Elite x3 | Sentence x9 / Bless x6 | Pick 75 / Steel x3 | x15 | Ruud Box 3000 / Shard x1 |
| 31-40 | x12 | Enhanced x8 / Elite x4 | Sentence x12 / Bless x8 | Pick 100 / Steel x4 | x20 | Ruud Box 3000 / Shard x1 |
| 41-50 | x15 | Enhanced x10 / Elite x5 | Sentence x15 / Bless x10 | Pick 125 / Steel x5 | x25 | Ruud Box 3000 / Shard x1 |
| 51-60 | x18 | Enhanced x12 / Elite x6 | Sentence x18 / Bless x12 | Pick 150 / Steel x6 | x30 | Ruud Box 3000 / Shard x1 |
| 61-70 | x21 | Enhanced x14 / Elite x7 | Sentence x21 / Bless x14 | Pick 175 / Steel x7 | x35 | Ruud Box 3000 / Shard x1 |
| 71-80 | x24 | Enhanced x16 / Elite x8 | Sentence x24 / Bless x16 | Pick 200 / Steel x8 | x40 | Ruud Box 3000 / Shard x1 |
| 81-90 | x27 | Enhanced x18 / Elite x9 | Sentence x27 / Bless x18 | Pick 225 / Steel x9 | x45 | Ruud Box 3000 / Shard x1 |
| 91-100 | Brilliant Box | Enhanced x20 / Elite x10 | Sentence x30 / Bless x20 | Pick 250 / Steel x10 | x50 | Ruud Box 3000 / Shard x1 |
Abbreviations: Enhanced = Guardian Enhanced Stone; Elite = Elite Guardian Enhanced; Sentence = Golden Sentence; Bless = Bless of Light (Greater); Pick value is item durability; Option Pieces = Guardian Elite Opt Change Pcs; Shard = Sealed Stone Shard.
Brilliant Excellent Gloves or Boots Box
The Brilliant Box replaces Elemental Runes in the 91-100 trophy pool. Opening it generates one class-appropriate Brilliant armor item.









