MU BATTLEGROUND 25
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Kanturu Invasion

The last representative of mixed life form created by Kantru people, and the perfect embodiment of terror. Nightmare's power was too great and uncontrollable, and he was imprisoned inside Maya since creation. When Kantru collapsed and Maya lost control, it was a chance for Nightmare to return to this world.

How to enter Kanturu Event

Gateway Mashine

Entrance is located on Kanturu Relic map [141, 186]. You need to have Moonstone Ring (equipped in ring slot), can be found on Kanturu Remains map. Moonstone Ring durability constantly decreases, it cannot be repaired. If you remove Moonstone Ring during battle you will be teleported to Kanturu Remains safe zone, and if this player was the only one at the event, it will restart in a few minutes.Event access opens when you see "1 minute left before Kanturu gate core opens". After that you need to come to entrance, equip Moonstone Ring, click on door and select "Enter". If preparation time is over - players can enter, if not - button "Enter" will be inactive, meaning you need to wait.

Moonstone Ring

Battle

Maya Left
Maya Right

After entering Maya, you must kill 10 monsters, after which Maya's Left Hand will appear. Players have 15 minutes to destroy Maya's Left Hand . If they fail, all participants are sent to the safe zone of Kantru Remains. After destroying Maya's Left Hand, players are given a two-minute break, during which additional participants can join the quest if someone dies. Joining the event is not possible during the battle itself. Players then need to kill 10 more monsters, after which Maya's Right Hand will appear . Players have 15 minutes to destroy Maya's Right Hand. If they fail, all participants are sent to the safe zone of Kantru 2. After destroying Maya's Right Hand, players are given a two-minute break, during which additional participants can join the quest if someone dies. Joining the event is not possible during the battle itself. Then, 20 more monsters appear that must be destroyed, after which both of Maya's arms must be destroyed. After Maya is defeated, the participants are transported to the boss, Nightmare . Players have 20 minutes to kill Nightmare. Upon receiving fatal damage, Nightmare will teleport three times to different parts of the area and fully restore its health. Mobs will also be resurrected during the teleportation.

Nightmare

For killing Nightmare, Maya Hand Left, Maya Hand Right you get a reward.

If players manage to defeat Nightmare, the Tower of Refine will be unlocked for the next 24 hours.

In the Tower of Refine you can refine Gemstone into Jewel of Harmony.

 

 

Harmony options

Tower of RefineElpis
  1. After completing the Kantru quest , go to the Tower of Refine in the Kantru Remains location (141, 186).
  2. Talk to Elpis .
  3. Click the "Refine Gemstone" button.
  4. Place the Gemstone in the machine and click "Refine".
  5. If you are lucky, you will get the Jewel of Harmony, otherwise the Gemstone will disappear (the chance of success is 50%).

Gemstone drops from monsters in Kantru and from bosses during the Kantru quest.

Jewel of Harmony

GemstoneJewel of Harmony

The Jewel of Harmony is crafted from Gemstone in the Tower of Refine (see above). Using the Jewel of Harmony, you can add new options to items. The success rate of adding an option is 30%.

Harmony options can be added to all weapons, shields, and all parts of sets: normal, Excellent, Ancient.

Peculiarities:

  1. You can only add one option per item.
  2. The higher the item level, the higher the chance of getting a better option.
  3. Items with this option cannot be sold (either to players or NPCs); items with this option are automatically assigned to your account. You can always remove the option (to sell or transfer the item later) from the goblin Jerridon. Of course, you can transfer items within your account.
  4. Items with Harmony options can be sold in the web store.
  5. To obtain this option, you need to insert the Jewel of Harmony into the item.
  6. Options are generated randomly.
  7. Luck does not affect the chance of getting an option.

 

Weapon Options

OptionLevel of the item being upgraded
+0+1+2+3+4+5+6+7+8+9+10+11+12+13
 
Min damage increase123456810121416182022
 
Max damage increase2545608095115130150165185200220235255
 
Attack damage increase2545608095115130150165185200220235255
 
Critical damage increase2545608095115130150165185200220235255
 
Skill damage increase, %102030507090110130150170190210230255
 
SD decrease rate, %246810121416182022242730
 
SD ignore rate, %12469111416192124262933
 
Required strength decrease2545608095115130150165185200220235255
 
Required agility decrease2545608095115130150165185200220235255
 
Attack rate increase (PvP) 255

You can't upgrade an option higher than the weapon's level. For example, if a weapon is upgraded to +13, you can get any option, but if it's upgraded to +12, you can't upgrade the Attack Rate Increase (PvP) option .

This option can be increased gradually. It's not necessary to set it to +13 right away. For example, you can level an item up to +6 and then increase its level as you become able.

Description of options

  • Minimum damage increase
  • Increases the minimum damage value on a weapon (minimum damage cannot exceed maximum damage).
     
  • Maximum damage increase
  • Increases the maximum damage value on weapons.
     
  • Attack damage increase
  • Increases the overall weapon damage value (minimum and maximum at the same time).
     
  • Critical damage increase
  • Increases critical damage. This value is cumulative with critical damage (generated by the Luck option ).
     
  • Skill damage increase, %
  • Increases damage when using a skill/magic. But no more than 1000 damage.
     
  • SD decrease rate, %
  • SD Damage Absorption Reduction. By default, in MuOnline PvP , 90% of damage goes to SD and 10% to HP. If a weapon has a 10% SD Decrease Rate option , the enemy's SD will absorb only 80% of damage, and their HP will absorb 20%. Armor and shields have the opposite Harmony option—SD Damage Absorption Rate. Your advantage can be negated if your opponent's SD is higher than your SD Decrease Rate .
     
  • SD ignore rate, %
  • Chance to ignore SD and deal damage directly to HP.
     
  • Required strength decrease
  • Reducing the minimum strength requirement.
     
  • Required agility decrease
  • Reduced minimum dexterity requirement.
     
  • Attack rate increase (PvP)
  • Increases Attack Rate in PvP.

Staves Options

OptionLevel of the item being upgraded
+0+1+2+3+4+5+6+7+8+9+10+11+12+13
 
Wizardry damage increase2545608095115130150165185200220235255
 
Skill damage increase, %102030507090110130150170190210230255
 
Critical damage increase2545608095115130150165185200220235255
 
SD decrease rate, %2571012151720222528303336
 
SD ignore rate, %2471013161922252831343741
 
Required strength decrease2545608095115130150165185200220235255
 
Required agility decrease2545608095115130150165185200220235255
 
Attack rate increase (PvP) 255

You can't upgrade an option higher than the staff's level. For example, if the staff is enchanted to +13, you can get any option, but if it's enchanted to +12, you can't upgrade the Attack Rate Increase (PvP) option .

This option can be increased gradually. It's not necessary to set it to +13 right away. For example, you can level an item up to +6 and then increase its level as you become able.

Description of options

  • Wizardry damage increase
  • Increases magical damage.
     
  • Critical damage increase
  • Increases critical damage. This value is cumulative with critical damage (generated by the Luck option ).
     
  • Skill damage increase, %
  • Increases damage when using a skill/magic. But no more than 1000 damage.
     
  • SD decrease rate, %
  • SD damage absorption reduction. By default, in MuOnline PvP , 90% of damage goes to SD and 10% to HP. If a staff has a 10% SD decrease rate option , the enemy's SD will absorb only 80% of the damage, and their HP will absorb 20%. Armor and shields have the opposite Harmony option—SD damage absorption rate. Your advantage can be negated if your opponent's SD is higher than your SD decrease rate .
     
  • SD ignore rate, %
  • Chance to ignore SD and deal damage directly to HP.
     
  • Required strength decrease
  • Reducing the minimum strength requirement.
     
  • Required agility decrease
  • Reduced minimum dexterity requirement.
     
  • Attack rate increase (PvP)
  • Increases Attack Rate in PvP.

Armor & Shields Options

OptionLevel of the item being upgraded
+0+1+2+3+4+5+6+7+8+9+10+11+12+13
 
Defense increase2545608095115130150165185200220235255
 
Damage decrease rate, %1234567891011121315
 
SD damage absorb rate, % 12345678910
 
Max AG increase2545608095115130150165185200220235255
 
Max HP increase2545608095115130150165185200220235255
 
HP recovery rate2545608095115130150165185200220235255
 
Mana recovery rate2545608095115130150165185200220235255
 
Defense rate increase (PvP) 255

You can't increase an option's level higher than your armor/shield level. For example, if your armor is +13, you can get any option, but if it's +3, you can't increase the SD damage absorption rate (%) option .

This option can be increased gradually. It's not necessary to set it to +13 right away. For example, you can level an item up to +6 and then increase its level as you become able.

Description of options

  • Defense increase
  • Increased armor. This value is added to the item's defense stat of the same name.
     
  • Damage decrease rate, %
  • Damage Reduction. Any damage dealt to your character will be reduced by the specified percentage (applies to both monsters and PvP). There's a common misconception that having this option on multiple items doesn't make sense because it doesn't stack. This isn't true. If you have this option set to 10% on one item and 5% on another, your character will take 15% less damage.
     
  • SD damage absorb rate, %
  • SD Damage Reduction. By default, in MuOnline PvP , 90% of damage goes to SD and 10% to HP. If armor or a shield has a 5% SD damage absorption rate , then your SD will absorb 95% of the damage from an attack, and your HP will absorb 5%. It might seem unnecessary to have more than 10% of this option in a set, but this is not the case. This is because weapons and staves have the opposite Harmony option—SD decrease rate. Your advantage can be negated if your opponent's SD damage absorption rate is higher than your SD damage absorption rate .
     
  • Maximum AG increase
  • Increases the character's maximum AG reserve.
     
  • Maximum HP increase
  • Increases the character's maximum HP.
     
  • HP recovery rate
  • Increases the character's life regeneration rate. There must be an HP recovery rate option on an item (such as a ring) for this option to work.
     
  • Mana recovery rate
  • Increases the character's mana regeneration rate.
     
  • Defense rate increase (PvP)
  • Increased Defense Rate in PvP.

Refining Stones

Lower refining stoneHigher refining stone
  1. Refining Stones are needed to improve Harmony options on items.
  2. Luck does not affect the successful use of Refining Stones.
  3. The success rate of increasing the Harmony option with a Lower Refining Stone is 20%, with a Higher Refining Stone it is 40%.
  4. If the Refining Stone is used unsuccessfully, the existing option on the item may drop to the minimum value.

Goblin Osbourne

Goblin Osbourne transforms items into Refining Stones. Normal items are transformed into Lower Refining Stones, and Excellent items are transformed into Higher Refining Stones.

Osbourne
Osbourne

Peculiarities:

  1. Normal items for recycling must be level +4 or higher.
  2. The chance to obtain a Lower Refining Stone is 30%.
  3. The chance of getting Higher Refining Stone is 45%.

Usage:

  1. Talk to Osbourne.
  2. Place the item you want to turn into a Refining Stone.
  3. Click the "Refine" button.
  4. If you're lucky, you'll get a Refining Stone.

Goblin Jerridon

Goblin Jerridon can remove unwanted Harmony options from items. After this, the items can be sold or transferred to other players (to another account).

Jerridon
Osbourne

Usage:

  1. Talk to Jerridon.
  2. Place the item whose option you are not satisfied with.
  3. Click the "Restore" button.
Posted: March 21, 2026
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