Blue Moon

Monster
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This fight takes place in an instance.
On death, all unprotected items will be moved to a grave outside the instance. Any items left on the ground will be lost.
This article has a strategy guide.
All information on mechanics and strategy will be on this page.
Blue Moon
Released20 March 2024 (Update)
MembersYes
Combat level329
Size5x5
ExamineThe icy embodiment of a blue moon.
League regionVarlamore Varlamore
Combat info
XP bonus+17.5%
Flat armour-5
Max hit32 total [4+8+20]
AggressiveYes
PoisonousNo
Attack styleTypeless slash
Attack speed6 ticks (3.6 seconds)
Combat stats
500258100601001
Aggressive stats
Monster attack bonusMonster strength bonusMonster magic strength bonusMonster ranged strength bonus
+100+0+0+0+0+0
Melee defence
+100+100+0
Magic defence
Air elemental weakness
+50015% weakness
Ranged defence
LightStandardHeavy
+500+500+500
Immunities
Poison100% resistance
Venom100% resistance
CannonsImmune
BurnImmune (strong)
Freeze100% resistance
Advanced data
Monster ID13013
LinkMOID

The Blue Moon is one of the three Moons of Peril imprisoned in Neypotzli. She is one of the nagua -alongside the Blood Moon and Eclipse Moon- who were originally summoned by a powerful shaman facing imminent death. Her companions disapproved and created Neypotzli to imprison the Moons and keep them from inflicting harm.[1]

The Blue Moon has a unique flat armour stat of -5, which increases the damage dealt against her by 5. As a result of this, weapons which deal damage via multiple hitsplats are particularly effective here.

If you are logged out or disconnect during the Weapon Freeze special attack, your weapon can be reclaimed from Eyatlalli.

Location

Location Levels Members Spawns Map League region
Neypotzli - Blue Moon chamber329Members1Show mapVarlamore Varlamore

Fight overview

The boss' standard attacks are a series of three hits, rolling accuracy and damage against the player's melee defence. Once the boss misses one of the hits, the remaining hits in the stack will automatically miss. Not having enough defence and being hit by the boss will cause your hands to freeze, causing you to miss attacks.

After six standard attacks, she will use one of two special attacks, alternating between them:

  • Weapon Freeze - Your weapon is forcefully removed and placed in a block of ice, where you must punch the ice with Eyatlalli's glyph under it. Icy spikes will also periodically appear that must be avoided.
  • Frost Storm - Two braziers at the ends of the chamber are extinguished. Run to each and relight them, whilst avoiding the moving storms that deal damage and force you to walk for two ticks. The boss will also heal five times during the storm, restoring 10 health for each unlit brazier. Restoring both braziers will also remove a portion of stacks from Curse of the Moon.

Stand in the sun symbol that rotates around the boss during regular attacks. Remaining outside the symbol will cause you to take increasing damage over time.

Changes

Date Changes
6 August 2025
(Update)

The number of tornadoes spawned by the Blue Moon has been further reduced.

25 June 2025
(Update)
3 April 2024
(Update)
  • The ring of recoil now correctly loses charges against the boss.
  • Quick-escape is now the default option for the stairs in the boss' chamber.
27 March 2024
(Update)
  • The rate at which the Blue Moon boss builds cold has doubled.
  • The Blue Moon boss now heals more consistently during the tornado phase.

References

  1. ^ Eyatlalli. Old School RuneScape. "In the face of inevitable death, a powerful shaman decided to lash out and inflict death on others. Her fellows disagreed with her actions. They created this prison, and they summoned me to watch over it."

Source

Content from the Old School RuneScape Wiki (operated by Weird Gloop), licensed under CC BY-NC-SA 3.0.

Source siteOld School RuneScape Wiki
Canonical sourceBlue Moon
Content licenseCC BY-NC-SA 3.0
License statusdeclared
PictureBlue Moon · file details

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