Dagannoth Rex

Dagannoth Rex
Released	7 November 2005 (Update)
Members	Yes
Combat level	303
Size	3x3
Examine	Firstborn of the legendary dagannoth kings.
Combat info
XP bonus	+30%
Max hit	26
Aggressive	Yes
Poisonous	No
Attack style	Slash
Attack speed	4 ticks (2.4 seconds)
Respawn time	150 ticks (90 seconds)
Slayer info
Slayer level	None
Slayer XP	331.4 xp
Category	Bosses, Dagannoth
Assigned by	File:Konar chathead.png
Combat stats
Aggressive stats
Melee defence
Magic defence
+10	No elemental weakness
Ranged defence
Immunities
Poison	Not immune
Venom	Converts to poison
Cannons	Not immune
Thralls	Not immune
	Open in DPS calculator
Advanced data
Monster ID	2267

This article has a strategy guide.

All information on mechanics and strategy will be on this page.

This article has a Slayer task guide here.

Information comparing locations for Slayer tasks will be on this page

Dagannoth Rex is the Melee-based Dagannoth King found in the depths of the Waterbirth Island Dungeon, along with fellow Dagannoth Kings, Dagannoth Supreme and Dagannoth Prime. Rex is the only monster to drop the Berserker and Warrior rings. He, along with the other Dagannoth Kings, can also drop the rare dragon axe.

Location

Levels

Members

Spawns

Map

League region

Waterbirth Island Dungeon

303

1

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Monster	Dagannoth Rex
Level(s)	303

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Fremennik✓

Waterbirth Island Dungeon (Slayer lair)

303

1

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Monster	Dagannoth Rex
Level(s)	303

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Fremennik✓

Dagannoth Rex spawns and roams on the south-eastern side of the Dagannoth Kings' lair. The lair is accessible via the Kings' ladder deep within the Waterbirth Island Dungeon. A separate lair where players that have a Dagannoth Slayer task can attack the Kings is accessible by using the "Slayer" option on the ladder. The lair can be peeked at to see if other players are inside it via the ladder and a crack inside a safe room nearby the ladder.

Strategy

Dagannoth Rex has an extremely low Magic Defence, so it is recommended to use Magic against him. Popular choices include Slayer Dart, Iban Blast, and powered staves.

Due to his large size and the fact he uses melee attacks only, it is recommended to get him stuck on one of the ridges of the lair and safespot him (note that Spinolyps will still be constantly attacking while you're safespotting). Many players use high-level armour such as Barrows armour, which give high Defence bonuses while still being able to hit Rex constantly with spells due to his very low Magic Defence, even if their magic attack bonus is below zero. Players who use Guthan's are advised to heal themselves on the Spinolyps while waiting on respawns to help preserve food and potions.

If players venture too far out west to lure Dagannoth Rex, they risk attracting attention from both Dagannoth Prime and Dagannoth Supreme. Prime is the bigger threat since he wanders closer to the east and north-east. This can be avoided by staying in the south-eastern part of the arena, as Prime will rarely (if ever) go there, and attack Rex only when he's nearest to the east.

Money making

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Drops

Drop rates estimated based on 217,761 samples from the Drop Rate Project, unless otherwise cited.

Excluding berserker ring drops, the average kill is worth −34,284.00.

100%

	Item	Quantity	Rarity	Price	High Alch
	Dagannoth bones	1^{[d 1]}	Always	14,448	90
	Dagannoth hide	1	Always	307	36

^ Dropped in noted form if the player has completed the elite tier of the Fremennik diary

Weapons and armour

Item	Quantity	Rarity	Price	High Alch
Steel kiteshield	1	17/128	299	510
Mithril warhammer	1	11/128	843	996
Adamant axe	1	7/128^[1]	446	768
Steel platebody	1	4/128	915	1,200
Mithril pickaxe	1	3/128	427	780
Adamant platebody	1	2/128	9,557	9,984
Fremennik blade	1	2/128	Not sold	3,000
Dragon axe	1	1/128^[2]^[3]	53,330	33,000
Rune axe	1	1/128	7,232	7,680
Fremennik shield	1	1/128	Not sold	3,000
Fremennik helm	1	1/128	Not sold	3,000
Mithril 2h sword	1	1/128	1,215	1,560
Ring of life	1	1/128	1,871	2,115
Rock-shell plate	1	1/128^[4]	38,490	39,000
Rock-shell legs	1	1/128^[4]	38,463	38,400
Berserker ring	1	1/128^[2]^[3]^[4]	4,388,233	6,000
Warrior ring	1	1/128^[2]^[3]^[4]	71,434	6,000

Potions

Item	Quantity	Rarity	Price	High Alch
Antifire potion(2)	1	1/128	550	118
Prayer potion(2)	1	1/128	4,858	68
Restore potion(2)	1	1/128	42	39
Super attack(2)	1	1/128	694	81
Super strength(2)	1	1/128	2,543	99
Super defence(2)	1	1/128	2,269	118
Zamorak brew(2)	1	1/128	873	90

Ores and bars

Item	Quantity	Rarity	Price	High Alch
Mithril ore	25 (noted)	10/128	3,350	2,425
Adamantite bar	1	3/128	1,921	384
Coal	100 (noted)	2/128	15,200	2,700
Iron ore	150 (noted)	1/128	31,350	1,500
Steel bar	15–30 (noted)	1/128	7,815–15,630	900–1,800

Talismans

There is a 1/128 chance of rolling the talisman drop table.^[5]

Item	Quantity	Rarity	Price	High Alch
Air talisman	1	1/896	110	2
Body talisman	1	1/896	1,717	2
Earth talisman	1	1/896	240	2
Fire talisman	1	1/896	3,810	2
Mind talisman	1	1/896	1,273	2
Water talisman	1	1/896	139	2
Cosmic talisman	1	1/2,240	259	2
Chaos talisman	1	1/2,986.7	309	2
Nature talisman	1	1/2,986.7	328	2

Other

Item	Quantity	Rarity	Price	High Alch
Coins	100–1,209	10/128	100–1,209	100–1,209
Grimy ranarr weed	1	7/128	6,709	18
Bass	5	7/128	720	120
Swordfish	5	4/128	810	240
Shark	5	1/128	4,375	510

Rare and Gem drop table

There is a 8/128 chance of rolling the rare drop table. There is also a 10/128 chance of rolling the gem drop table.

	Item	Quantity	Rarity	Price	High Alch
	Nothing	N/A	1/19.87; Never^{[d 1]}	N/A	N/A
	Coins	3,000	1/97.52	3,000	3,000
	Loop half of key	1	1/95.67; 1/89.95^{[d 2]}	11,919	60
	Tooth half of key	1	1/95.67; 1/89.95^{[d 2]}	11,925	60
	Uncut sapphire	1	1/45.51; 1/23.11^{[d 2]}	238	15
	Runite bar	1	1/409.6	12,467	3,000
	Nature rune	67	1/682.67	7,169	7,236
	Rune 2h sword	1	1/682.67	37,885	38,400
	Rune battleaxe	1	1/682.67	24,300	24,960
	Uncut emerald	1	1/91.02; 1/46.22^{[d 2]}	463	30
	Law rune	45	1/1,024	5,715	6,480
	Death rune	45	1/1,024	7,200	4,860
Steel arrow.png: Dagannoth Rex drops Steel arrow with rarity 1/1,024 in quantity 150	Steel arrow	150	1/1,024	2,700	1,050
Rune arrow.png: Dagannoth Rex drops Rune arrow with rarity 1/1,024 in quantity 42	Rune arrow	42	1/1,024	2,352	10,080
	Adamant javelin	20	1/1,024	1,140	1,920
	Rune sq shield	1	1/1,024	22,551	23,040
	Dragonstone	1	1/1,024	11,580	6,000
	Silver ore	100 (noted)	1/1,024	6,500	4,500
	Uncut ruby	1	1/182.04; 1/92.44^{[d 2]}	988	60
	Rune kiteshield	1	1/2,048	32,131	32,640
	Dragon med helm	1	1/2,048	59,006	60,000
	Rune spear	1	1/1,997.29; 1/216.1^{[d 2]}^{[d 3]}	11,871	12,480
	Shield left half	1	1/3,994.58; 1/432.21^{[d 2]}^{[d 3]}	65,394	66,000
	Nature talisman	1	1/485.45; 1/246.52^{[d 2]}	328	2
	Dragon spear	1	1/5,326.1; 1/576.28^{[d 2]}^{[d 3]}	38,854	37,440
	Uncut diamond	1	1/728.18; 1/369.78^{[d 2]}	2,142	120
	Rune javelin	5	1/1,456.36; 1/739.56^{[d 2]}	950	1,200

^ The "nothing" drop is removed while wearing a ring of wealth.
^ ^2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.
^ ^3.0 ^3.1 ^3.2 Slightly reduced chance of dropping if Legends' Quest has not been completed.

Tertiary

	Item	Quantity	Rarity	Price	High Alch
	Ensouled dagannoth head	1	1/20	2,295	273
	Clue scroll (hard)	1	1/42^{[d 1]}^[3]	Not sold	12
Brimstone key.png: Dagannoth Rex drops Brimstone key with rarity 1/60 in quantity 1	Brimstone key	1	1/60^{[d 2]}	Not sold	N/A
	Clue scroll (elite)	1	1/750^{[d 3]}^[2]^[3]	Not sold	12
	Pet dagannoth rex	1	1/5,000^[6]	Not sold	N/A

^ The hard clue scroll drop rate increases to 1/39 after unlocking the hard Combat Achievements rewards tier.
^ Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.
^ The elite clue scroll drop rate increases to 1/712 after unlocking the elite Combat Achievements rewards tier.

Combat Achievements

There are 0 Combat Achievement tasks (totalling 0 points) available for Dagannoth Rex.

Name	Description	Type	Tier	Comp%

Changes

Date	Changes
[[{{#explode:5 March 2015\| \|0}} {{#explode:5 March 2015\| \|1}}]] [[{{#explode:5 March 2015\| \|2}}]] (update \| poll)	Dagannoth bones are now noted drops if you have completed the Fremennik Elite Diary.
[[{{#explode:17 July 2014\| \|0}} {{#explode:17 July 2014\| \|1}}]] [[{{#explode:17 July 2014\| \|2}}]] (update \| poll)	Players can now receive a pet version of this boss after defeating it.

References

^ Jagex. Mod Ash's Twitter account. 2 May 2017. Archived from the original on 15 April 2019. Mod Ash: "7/128 chance from Rex."
^ ^2.0 ^2.1 ^2.2 ^2.3 Envision. "Drop Rates V2." Old School RuneScape Forums.
^ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 Jagex. Mod Ash's Twitter account. 28 September 2015. Archived from the original on 15 April 2019. Mod Ash: "1/42 for a hard clue, 1/750 for elite, 1/128 for a d axe and 1/128 for a ring."
^ ^4.0 ^4.1 ^4.2 ^4.3 Jagex. Mod Ash's Twitter account. 10 July 2018. Archived from the original on 15 April 2019. Mod Ash: "Each of those items is 1/128."
^ Jagex. Mod Ash's Twitter account. 22 June 2016. Archived from the original on 15 April 2019. Mod Ash: "He has a 1/128 chance of calling the talisman table; it has a 1/7 chance of giving an air talisman."
^ Jagex. Mod JohnC's Twitter account. 22 September 2014. Archived from the original on 25 March 2019. Mod JohnC: "Almost forgot the final week of boss pet drop rates! DKS Pets are all 1 in 5000"

[1] Dropped in noted form if the player has completed the elite tier of the Fremennik diary

[7] The "nothing" drop is removed while wearing a ring of wealth.

[row-8] 2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.

[rowm-9] 3.0 ^3.1 ^3.2 Slightly reduced chance of dropping if Legends' Quest has not been completed.

[10] The hard clue scroll drop rate increases to 1/39 after unlocking the hard Combat Achievements rewards tier.

[11] Brimstone keys are only dropped if killed on a Slayer task given by Konar quo Maten.

[12] The elite clue scroll drop rate increases to 1/712 after unlocking the elite Combat Achievements rewards tier.

[2] Jagex. Mod Ash's Twitter account. 2 May 2017. Archived from the original on 15 April 2019. Mod Ash: "7/128 chance from Rex."

[Drop_Rates_V2-3] 2.0 ^2.1 ^2.2 ^2.3 Envision. "Drop Rates V2." Old School RuneScape Forums.

[Ash_tweet_unique_rates-4] 3.0 ^3.1 ^3.2 ^3.3 ^3.4 Jagex. Mod Ash's Twitter account. 28 September 2015. Archived from the original on 15 April 2019. Mod Ash: "1/42 for a hard clue, 1/750 for elite, 1/128 for a d axe and 1/128 for a ring."

[Armour+Rings-5] 4.0 ^4.1 ^4.2 ^4.3 Jagex. Mod Ash's Twitter account. 10 July 2018. Archived from the original on 15 April 2019. Mod Ash: "Each of those items is 1/128."

[6] Jagex. Mod Ash's Twitter account. 22 June 2016. Archived from the original on 15 April 2019. Mod Ash: "He has a 1/128 chance of calling the talisman table; it has a 1/7 chance of giving an air talisman."

[Confirmed_droprates-13] Jagex. Mod JohnC's Twitter account. 22 September 2014. Archived from the original on 25 March 2019. Mod JohnC: "Almost forgot the final week of boss pet drop rates! DKS Pets are all 1 in 5000"

[d 1]

[1]

[2]

[3]

[4]

[5]

[d 1]

[d 2]

[d 3]

[d 1]

[d 2]

[d 3]

[6]

v • t • e Dagannoth
Dagannoth	Dagannoth spawn Dagannoth fledgeling Dagannoth_{(Waterbirth) (POH)}
Bosses	Dagannoth Kings_{(Prime) (Rex) (Supreme)} Dagannoth mother
Pets	Dagannoth Prime Dagannoth Rex Dagannoth Supreme

Dagannoth Rex

Contents

Location

Strategy

Money making

Drops