Gleason's Gielinor Guide

Dagannoth mother

Released		17 November 2004 (Update)
Members		Yes
Combat level		100
Size		3x3
Examine		A horror from the ocean depths...
Combat info
XP bonus		+5%
Max hit		9 (Melee) 12×2 (Ranged)
Aggressive		Yes
Poisonous		No
Attack style		Melee, Ranged
Attack speed		4 ticks (2.4 seconds)
Slayer info
Slayer level		None
Slayer XP		126 xp
Category		Dagannoth
Assigned by
Combat stats

120	78	78	81	1	50
Aggressive stats

+0	+0	+0	+0	+0	+0
Melee defence

+150		+150		+150
Magic defence

+50			35% weakness
Ranged defence

+50		+50		+50
Immunities
Poison		0% resistance
Venom		0% resistance
Open in DPS calculator
Advanced data
Monster ID		980,981,982,983,984,985,986,987,988
Link		MOID

The Dagannoth mother is fought at the end of the quest Horror from the Deep. She cycles through different colours every 18 seconds to explicitly show her weaknesses.

While fighting the Dagannoth Mother, it is possible to hide or safespot behind the nearby stalagmites. Protect from Missiles is advised as her Ranged attack is highly accurate. She can hit up to 9s with Melee, and can hit double 12s with Ranged. Pures are advised to bring a ring of recoil and turn off auto-retaliate if not using melee.

Note: The twinflame staff cannot be effectively used against her, as even when trying to cast other elemental spells, it will default to casting earth spells due to the Dagannoth mother's elemental weakness to earth.

Once she is defeated, you will obtain a rusty casket.

She can be fought in the Nightmare Zone after the quest is complete. Runes are provided in the arena.

Weakness by colour

Colour	Weakness	Attack Using
White	Air spells	Wind Strike, Bolt, Blast, Wave, or Surge.
Blue	Water spells	Water Strike, Bolt, Blast, Wave, or Surge.
Orange	Melee	Melee attacks.
Brown	Earth spells	Earth Strike, Bolt, Blast, Wave, or Surge.
Red	Fire spells	Fire Strike, Bolt, Blast, Wave, or Surge.
Green	Ranged	Ranged attacks.

Drops

100%

	Item	Quantity	Rarity	Price	High Alch
	Bones	1	Always	40	0
	Rusty casket	1	Always	Not sold	0

Dialogue

This article on an NPC has an associated transcript list.
Click here for a list of transcripts that this NPC speaks in.

Changes

Date	Changes
25 June 2025 (Update)	The Dagannoth mother now has a 35% elemental weakness to earth spells.
31 July 2006 (Update)	The Dagannoth mother's orange form was recoloured.
7 December 2004 (Update)	You now get messages when fighting the Dagannoth mother which should make it easier for colour blind people to tell what is going on.

Gallery (historical)


17 November 2004 – 31 July 2006	31 July 2006 – present

Trivia

A dessert-themed version of the Dagannoth mother makes an appearance in the Recipe for Disaster final battle as the Gelatinnoth Mother.