OSRS Blue Moon Guide: Weapon Freeze, Tornadoes & Crush Gear

Blue Moon at a Glance

The Blue Moon is one of the three Moons of Peril in Neypotzli under Cam Torum: a level 329 melee boss with 500 Hitpoints, unlocked by the Perilous Moons quest. She is weak to crush and has -5 flat armour, so every hitsplat you land does 5 extra damage. That makes multi-hit weapons especially strong here: the dual macuahuitl, Torag's hammers and the glacial temotli hit twice, and the scythe of Vitur lands three hitsplats on a Moon.

Her two special attacks alternate. Weapon Freeze knocks your weapon into a block of ice that you have to punch open, and Frost Storm puts out two braziers that you relight while dodging tornadoes. Between specials you stand on Eyatlalli's glyph and hit her. Protection prayers do nothing against any Moon.

Weapon Freeze

At the full moon sigil she rips your weapon out of your hands and seals it in one of three blocks of ice. Hit the block that glows blue, barehanded. You cannot equip anything else until it breaks, and failing to break it in time deals up to 28 damage.

• Punch the block twice, then step away before the ice shards it plants around itself shatter.
• There is a safespot one tile north of the centre of the ritual symbol.
• If you start the phase with no weapon equipped, you take 3 to 15 damage and still have to break the ice.
• If you disconnect while your weapon is frozen, get it back from Eyatlalli.
• A Soulreaper axe loses all its soul stacks when this phase starts.

Frost Storm: the Tornado Phase

At the new moon sigil the two braziers at opposite ends of the chamber go out and tornadoes start moving through the room. During the storm she heals five times, 10 Hitpoints for each unlit brazier each time, up to 100 in total. Run to each brazier and relight it; you do not need a tinderbox.

A tornado hit deals damage and forces you to walk for two ticks. Ctrl-click ignores the forced walk, and there are safe spots on either side of each brazier, marked by footprints in the snow. Relighting both braziers also clears part of your curse stacks.

Jagex cut the number of tornadoes in June 2025 and again in August 2025, so older videos make this phase look busier than it is now. With high enough damage you can skip the braziers and out-damage the healing; otherwise relight both.

Standard Attacks and the Frozen-Hands Curse

The standard attack is the shared Moon attack: three melee hits rolled against your slash defence, with max hits of 4, 8 and 20. Once one hit misses, the rest of that attack misses too.

Blue Moon's curse freezes your hands. Her hits add 1, 2 and 5 stacks. You get a warning that the cold is getting in at 3 stacks and that your joints are locking up at 9; at 18 your next attack is cancelled and 18 stacks are removed. Full three-hit attacks landing on you therefore cost you whole attacks, and better defence means fewer lost hits.

Stay on Eyatlalli's glyph during standard attacks. Off it you take damage every tick, starting at 1 and doubling up to 16. The glyph moves clockwise every two attacks, and the special starts when it reaches the full or new moon sigil.

Requirements and How to Get There

You need Perilous Moons: 48 Slayer, 20 Hunter, 20 Fishing, 20 Runecraft and 10 Construction, none boostable, plus Twilight's Promise. Our Perilous Moons quest guide covers it. The wiki suggests 75+ combat with 70+ Attack, Strength and Defence, 75+ Hitpoints and 34+ Prayer. The boss requirements checklist lists the other Varlamore gates.

Reach the Neypotzli entrance at the north end of Cam Torum by calcified moth, the Cam Torum quetzal landing site, or the Pendant of Ates with 47 Agility. From the antechamber take the north-west exit into the Earthbound Cavern. Clicking the Hunter icon on the minimap runs you past the wyrmlings and down the stairs, and the boss room is directly east of that icon.

Best Gear and Weapons for Blue Moon

Use defensive melee armour with strength where you can get it: Torva, Bandos or Barrows. Her attack rolls against your slash defence, and every hit she lands also builds the curse that cancels your attacks.

Torag's hammers can beat a Sarachnis cudgel or zombie axe depending on your other gear, so check the wiki DPS calculator if you are unsure. Defence-draining specs and Death Charge do nothing to any Moon, and her +500 magic and ranged defence rules out the other styles.

Supplies and Inventory

• Moonlight potions made in the dungeon (38 Herblore) for combat boosts and prayer.
• Cooked bream or cooked moss lizard (30 Cooking). The Earthbound Cavern next to Blue Moon is where the moss lizards are.
• A butterfly net for moonlight moths at 75 Hunter, 22 prayer points each.
• A spec weapon and an emergency teleport. The boss room also has a quick-escape staircase.

Everything made inside Neypotzli is destroyed when you leave, so make only what you need. If your Herblore is below 66, the wiki suggests bringing one super combat or super defence potion.

Kill Order and Blue Moon Only Route

In the wiki's standard loop Blue Moon is second: kill Eclipse in the Streambound Cavern, land at the Earthbound camp, kill Blue, land in the Ancient Prison for Blood Moon, then open the Lunar Chest to the south.

Blue only: after the kill you land in the Ancient Prison, the room with the Sulphur Nagua. Go south past them to the Lunar Chest, loot it, then follow the passages north back to the Blue Moon entrance.

Drops: Blue Moon Armour and the Blue Moon Spear

Each Blue Moon kill gives a 1/56 roll at her set when you open the Lunar Chest: Blue Moon helm, chestplate, tassets or Blue Moon spear, 1/224 each. Duplicate protection means no repeat piece until the set is complete.

The full set gives 8% magic damage, and you need all four pieces to use the spear's special attack, Break Shackles. Broken armour costs 1,500,000 coins per piece to repair at Bob or Dunstan, or 757,500 at an armour stand with 99 Smithing.

Break Shackles and Frostweaver both need all four pieces, so the full set is what counts. The wiki's chest table puts a 25% chance at one specific set at 143 chests and a 90% chance at 373. Our Lunar Chest service runs Moons of Peril kills on your account.

Combat Achievements

The Moons of Peril have 12 Combat Achievement tasks worth 33 points. None are Blue Moon only. The shared tasks you can do here include Fortified (Hard: kill a Moon without consuming any supplies), Betrayal (Hard: kill a Moon with its own weapon drop, which for Blue Moon is the spear) and High Hitter (Elite: kill a Moon before its second special attack).

Ironman Notes

Damage is tracked per player, so irons get full rewards in a busy room. If you have already got the dual macuahuitl from Blood Moon, use it here: it is a two-hit crush weapon, and the wiki ranks it just behind the scythe for this fight.

Common Mistakes

• Punching the wrong ice block. Only the one glowing blue holds your weapon.
• Staying next to the block after two punches and eating the shards.
• Ignoring the braziers on low damage. She can heal up to 100 per storm.
• Running through tornadoes instead of using the footprint safe spots.
• Bringing stab or slash weapons when her weakness is crush.
• Turning on Protect from Melee. It does nothing against any Moon.

FAQ

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