Dagannoth Rex

NormalPvM Arena
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
Respawn time	150 ticks (90 seconds)
Slayer info
Slayer level	None
Slayer XP	331.4 xp
Category	Bosses, Dagannoth
Assigned by
Combat stats
Aggressive stats
Defensive stats
Immunities
Poison	Not immune
Venom	Converts to poison
Cannons	Not immune
Thralls	Not immune
Advanced data
Monster ID	2267

This article has a strategy guide here.

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, which can become best-in-slot rings for Strength and Slash after being imbued at the Nightmare Zone. He, along with the other Dagannoth Kings, can also drop the rare dragon axe.

Location[edit | edit source]

Location	Levels	Members	Spawns	Map
Waterbirth Island Dungeon	303		1	Maplink
Waterbirth Island Dungeon	303		1	Maplink

There is a separate cave available for those on a slayer task. Accessed by right clicking the ladder that leads to the Dagannoth Kings.

Strategy[edit | edit source]

Luring Rex to a safespot.

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 heal themselves on the Spinolyps while waiting on respawns to help preserve food and potions.

Dangers[edit | edit source]

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.

Drops[edit | edit source]

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

The average Dagannoth Rex kill is worth 30,015.53.

The average Dagannoth Rex kill while on a Konar task is worth 31,925.1.

100%[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Dagannoth bones	1^{[d 1]}	Always	8,623	90
	Dagannoth hide	1	Always	200	36

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

Weapons and armour[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Steel kiteshield	1	17/128	263	510
Mithril warhammer	1	11/128	841	996
Adamant axe	1	7/128^[1]	480	768
Steel platebody	1	4/128	901	1,200
Mithril pickaxe	1	3/128	411	780
Adamant platebody	1	2/128	9,543	9,984
Fremennik blade	1	2/128	Not sold	3,000
Dragon axe	1	1/128^[2]^[3]	52,894	33,000
Rune axe	1	1/128	7,211	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	1,242	1,560
Ring of life	1	1/128	1,910	2,115
Rock-shell plate	1	1/128^[4]	38,026	39,000
Rock-shell legs	1	1/128^[4]	38,193	38,400
Berserker ring	1	1/128^[2]^[3]^[4]	2,208,041	6,000
Warrior ring	1	1/128^[2]^[3]^[4]	43,971	6,000

Potions[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Antifire potion(2)	1	1/128	192	118
Prayer potion(2)	1	1/128	6,154	68
Restore potion(2)	1	1/128	51	39
Super attack(2)	1	1/128	88	81
Super strength(2)	1	1/128	932	99
Super defence(2)	1	1/128	515	118
Zamorak brew(2)	1	1/128	1,175	90

Ores and bars[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Mithril ore	25 (noted)	10/128	3,050	2,425
Adamantite bar	1	3/128	1,982	384
Coal	100 (noted)	2/128	16,600	2,700
Iron ore	150 (noted)	1/128	18,000	1,500
Steel bar	15–30 (noted)	1/128	6,690–13,380	900–1,800

Talismans[edit | edit source]

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

Item	Quantity	Rarity	Price	High Alch
Air talisman	1	1/896	74	2
Body talisman	1	1/896	1,688	2
Earth talisman	1	1/896	377	2
Fire talisman	1	1/896	1,759	2
Mind talisman	1	1/896	1,166	2
Water talisman	1	1/896	307	2
Cosmic talisman	1	1/2,240	265	2
Chaos talisman	1	1/2,986.7	119	2
Nature talisman	1	1/2,986.7	238	2

Other[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Coins	100–1,209	10/128	100–1,209	100–1,209
Grimy ranarr weed	1	7/128	9,326	18
Bass	5	7/128	415	120
Swordfish	5	4/128	1,725	240
Shark	5	1/128	4,595	510

Rare and Gem drop table[edit | edit source]

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]}	9,821	60
Tooth half of key	1	1/95.67; 1/89.95^{[d 2]}	10,683	60
Uncut sapphire	1	1/45.51; 1/23.11^{[d 2]}	353	15
Runite bar	1	1/409.6	12,436	3,000
Nature rune	67	1/682.67	12,529	7,236
Rune 2h sword	1	1/682.67	37,771	38,400
Rune battleaxe	1	1/682.67	24,389	24,960
Uncut emerald	1	1/91.02; 1/46.22^{[d 2]}	567	30
Law rune	45	1/1,024	6,120	6,480
Death rune	45	1/1,024	8,370	4,860
Steel arrow	150	1/1,024	1,350	1,050
Rune arrow	42	1/1,024	2,940	10,080
Adamant javelin	20	1/1,024	1,320	1,920
Rune sq shield	1	1/1,024	22,432	23,040
Dragonstone	1	1/1,024	11,586	6,000
Silver ore	100 (noted)	1/1,024	5,000	4,500
Uncut ruby	1	1/182.04; 1/92.44^{[d 2]}	1,176	60
Rune kiteshield	1	1/2,048	31,856	32,640
Dragon med helm	1	1/2,048	58,946	60,000
Rune spear	1	1/1,997.29; 1/216.1^{[d 2]}^{[d 3]}	11,884	12,480
Shield left half	1	1/3,994.58; 1/432.21^{[d 2]}^{[d 3]}	65,336	66,000
Nature talisman	1	1/485.45; 1/246.52^{[d 2]}	238	2
Dragon spear	1	1/5,326.1; 1/576.28^{[d 2]}^{[d 3]}	37,374	37,440
Uncut diamond	1	1/728.18; 1/369.78^{[d 2]}	2,812	120
Rune javelin	5	1/1,456.36; 1/739.56^{[d 2]}	920	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[edit | edit source]

Item	Quantity	Rarity	Price	High Alch
Ensouled dagannoth head	1	1/20	2,103	273
Clue scroll (hard)	1	1/42^{[d 1]}^[3]	Not sold	12
Brimstone key	1	1/59^{[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 with the completion of the hard combat achievements.
^ 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 with the completion of the elite combat achievements.

Combat Achievements[edit | edit source]

The following Combat Achievement tasks involve Dagannoth Rex.

Name	Description	Difficulty	Category
Dagannoth Rex Champion	Kill Dagannoth Rex 10 times.	Medium	Kill count
A Frozen King	Kill Dagannoth Rex whilst he is immoblized.	Medium	Mechanical
Dagannoth Rex Adept	Kill Dagannoth Rex 25 times.	Hard	Kill count
Death to the Warrior King	Kill Dagannoth Rex whilst under attack by Dagannoth Supreme and Dagannoth Prime.	Elite	Mechanical
Toppling the Diarchy	Kill Dagannoth Rex and one other Dagannoth king at the exact same time.	Elite	Mechanical

Changes[edit | edit source]

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

References[edit | edit source]

^ 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 with the completion of the hard combat achievements.

[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 with the completion of the elite combat achievements.

[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 • d • 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[edit | edit source]

Strategy[edit | edit source]

Dangers[edit | edit source]