Complete the quest to unlock repeatable encounters in Ghorrock Dungeon.
Complete boss guide
Phantom Muspah
Control both forms, manage the prayer shield, and build a clean movement pattern for repeatable solo kills.
Solo encounterRanged or hybridMovement checksPrayer shield
Combat level741
Hitpoints850
Recommended85+ Ranged
UnlockSecrets of the North
Guide statusPublished
Requirements
Unlocks and practical targets
Recommended for reliable ranged-only or hybrid kills.
Useful when bringing a magic switch for the melee form.
Rigour helps throughout the fight and Smite is central to the shield phase.
Sapphire enchanted bolts are a practical answer to the prayer shield.
Leave enough inventory room that supplies do not become harder than the mechanics.
Core mechanics
What controls the method
Ranged form
Protect from Missiles, maintain distance, and keep attacking while watching for floor hazards.
Melee form
Kite around the room or use step-back timing so the Muspah cannot land its melee hit.
Spike eruption
Read the floor and move into open space before the spikes restrict your route.
Teleport strike
React to the reposition and restore spacing before returning to your damage cycle.
Prayer shield
Use Smite and sapphire enchanted bolts to drain the shield efficiently.
Final phase
Keep prayers controlled and finish the kill without allowing the shrinking arena to rush your clicks.
Equipment setups
Budget, recommended, and high-end options
Ranged-only learner
Keeps switches out of the fight so you can focus on kiting, spikes, and the prayer shield.
- Dragon crossbow
- Blessed d'hide
- Ruby dragon bolts (e)
- Sapphire dragon bolts (e)
- Ava's accumulator
- Barrows gloves
Comfort hybrid
Use Magic on the melee form and Ranged on the ranged form for more reliable damage.
- Bow of faerdhinen
- Crystal armour
- Trident of the swamp
- Ahrim's robes
- Sapphire bolts (e)
- Lightbearer
Premium ranged
High-end Ranged gear simplifies the inventory once movement and shield timing are consistent.
- Twisted bow
- Masori armour
- Zaryte crossbow
- Sapphire dragon bolts (e)
- Zaryte vambraces
- Venator ring
Repeatable strategy
A practical operating loop
Begin with spacing
Start at range and keep the centre of the room available for later movement.
Respect the current form
Change prayer and combat style before chasing damage.
Move with a route
Kite around the perimeter without trapping yourself behind spike patterns.
Prepare for the shield
Switch to Smite and sapphire bolts immediately when the prayer shield appears.
Finish without rushing
Keep enough food and prayer for the final phase rather than overcommitting earlier.
Before you commit
How to use this guide
Ranged-only is easier to learn, while hybrid setups can improve consistency with practice.
Use your own kill time and supply use when comparing Muspah with Vorkath or Zulrah.
Continue exploringCompare another published Mlux Atlas guide
Open bosses