Dagannoth Kings: how to defeat it (Ironman guide)
The 3 kings on floor 6 of Waterbirth: Prime (AoE magic, up to 50), Supreme (ranged) and Rex (melee). Each is weak to one style: ranged on Prime, melee on Supreme, magic on Rex. Kill them in a rotation using the respawn time so you never have 2 on you.
⚔ Open in the interactive guide
Dagannoth Kings

- Tier
- Mid
- Combat level
- 303
- Style
- Mixed
- Requirements
- Waterbirth Island. All 3 styles (Prime magic, Supreme ranged, Rex melee)
- Why kill it as an Ironman
- Archers ring, Seers ring, Berserker ring, Warrior ring, Dragon axe, Seercull, Mud battlestaff.
- Loot
- The live drop table (wiki rates) and the drop simulator are in the app. ⚔ Open in the interactive guide
Mechanics: what hits you and what to pray
The 3 kings on floor 6 of Waterbirth: Prime (AoE magic, up to 50), Supreme (ranged) and Rex (melee). Each is weak to one style: ranged on Prime, melee on Supreme, magic on Rex. Kill them in a rotation using the respawn time so you never have 2 on you.
Left icon: what hits you. Right icon: what to pray.
Step by step
- Protect from Magic before the ladder. Enter and exit until you can go along the south wall to the east side unnoticed (aggro: 5 tiles).
- Rex with magic from the east-wall safespot.
- Rotate north (counter-clockwise) and kill Prime with ranged from the north wall, praying Magic.
- Go south and kill Supreme with melee praying Missiles, as far west as possible.
- Back to the east wall for Rex and repeat. Sip Sanfew before re-boosting combat/ranging.
Key gear
Typical inventory
Super combat potion(4) x2 · Ranging potion(4) x2 · Sanfew serum(4) x2 · Super restore(4) x6 · Shark x3 · Rune thrownaxe · Pet rock
Ironman tips
- 💡 Cannon on Prime's spawn and load it ONLY when he appears: on Rex and Supreme it makes them attack you instantly.
- 💡 85 Agility (80 with a Summer pie) skips the tunnels and saves the Rune thrownaxe and Pet rock. POH portal to Waterbirth. Elite Fremennik Diary: noted bones.
- 💡 Fewer switches, more supplies: what matters is finishing the task in 1 trip. Guthan's or SGS on the Spinolyps extend the trip a lot.
Wiki images and videos
Guide summarised from the OSRS Wiki strategies (CC BY-NC-SA 3.0). Icons and images: OSRS Wiki. In the app: live drop table, drop simulator, map and Set builder with this boss as target.




