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This article has a strategy guide here.
All information on mechanics and strategy 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 coveted Berserker and Warrior rings; the former can be sold for a hefty price. He, along with the other Dagannoth Kings, can also drop the rare dragon axe.

Strategy

Dagannoth Rex has an extremely low Magic Defence. Therefore, it is recommended to use Magic against him for better hits; popular choices are Slayer Dart, Fire Wave, Trident and God spells. For best damage per second, players should use a Staff of the dead for the 15% damage boost (stacks with Charge spell), as well as its ability to autocast Flames of Zamorak. Another more popular alternative is the use of the Trident of the seas or Toxic trident. Using any of these strategies in conjunction with the Slayer helm (i), a player can now deal out extra damage if they are on a dagannoth task. Occult necklace may be used with Staff of the dead or Trident of the seas/swamp for an extra 10% magic damage.  

Dagannoth Rex safe spot

Luring Rex to a safe spot.

Due to his large size, the fact he uses melee attacks only and the surroundings he is in, 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 him). 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 the Infested's equipment are advised heal themselves on the Spinolyps while waiting for Rex to re-spawn to help preserve food and potions.

Dangers

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

Drops

100%

Item Quantity Rarity GE market price
Dagannoth bones Dagannoth bones 1 Always 9,444
Dagannoth hide Dagannoth hide 1 Always 413

Weapons

Item Quantity Rarity GE market price
Fremennik blade Fremennik blade 1 Common Not sold
Mithril warhammer Mithril warhammer 1 Common 677
Mithril 2h sword Mithril 2h sword 1 Uncommon 1,209
Mithril pickaxe Mithril pickaxe 1 Uncommon 387
Adamant axe Adamant axe 1 Uncommon (7/128) 755
Rune axe Rune axe 1 Uncommon 7,202
Dragon axe Dragon axe 1 Rare (1/128) 35,251

Armour

Item Quantity Rarity GE market price
Steel kiteshield Steel kiteshield 1 Common 261
Steel platebody Steel platebody 1 Common 879
Adamant platebody Adamant platebody 1 Uncommon 9,449
Fremennik shield Fremennik shield 1 Uncommon 1,002
Fremennik helm Fremennik helm 1 Rare Not sold
Rock-shell plate Rock-shell plate 1 Rare (1/128)[1] 38,377
Rock-shell legs Rock-shell legs 1 Rare (1/128)[1] 38,255
Ring of life Ring of life 1 Rare (1/128) 1,933
Berserker ring Berserker ring 1 Rare (1/128)[1] 2,583,086
Warrior ring Warrior ring 1 Rare (1/128)[1] 48,381

Potions

Item Quantity Rarity GE market price
Antifire potion(2) Antifire potion(2) 1 Uncommon 117
Prayer potion(2) Prayer potion(2) 1 Uncommon 4,893
Super attack(2) Super attack(2) 1 Uncommon 104
Super strength(2) Super strength(2) 1 Uncommon 594
Super defence(2) Super defence(2) 1 Uncommon 335
Zamorak brew(2) Zamorak brew(2) 1 Uncommon 1,857
Restore potion(2) Restore potion(2) 1 Uncommon 57

Ores and bars

Item Quantity Rarity GE market price
Adamantite bar Adamantite bar 1 Uncommon 1,928
Mithril ore Mithril ore 25 (noted) Uncommon 2,875
Coal Coal 100 (noted) Uncommon 13,000
Iron ore Iron ore 150 (noted) Rare 7,650
Steel bar Steel bar 15–38 (noted) Rare 5,955–15,086

Food

Item Quantity Rarity GE market price
Bass Bass 5 Uncommon 555
Swordfish Swordfish 5 Uncommon 1,600
Shark Shark 5 Uncommon 5,960

Talismans

There is a 1 in 128 chance of rolling the talisman table.[2]

Item Quantity Rarity GE market price
Air talisman Air talisman 1 Rare (1/896) 60
Mind talisman Mind talisman 1 Rare (1/896) 5,295
Water talisman Water talisman 1 Rare (1/896) 125
Earth talisman Earth talisman 1 Rare (1/896) 275
Fire talisman Fire talisman 1 Rare (1/896) 5,398
Body talisman Body talisman 1 Rare (1/896) 676
Cosmic talisman Cosmic talisman 1 Very rare (1/2,240) 720
Chaos talisman Chaos talisman 1 Very rare (3/8,960) 608
Nature talisman Nature talisman 1 Very rare (3/8,960) 746

Other

Item Quantity Rarity GE market price
Rare drop table Rare drop table 1 Common (1/16) Not sold
Ensouled dagannoth head Ensouled dagannoth head 1 Common (1/20) 3,412
Coins 1000 Coins 126–3,000 Uncommon Not sold
Grimy ranarr weed Grimy ranarr weed 1 Uncommon 7,554
Clue scroll (hard) Clue scroll (hard) 1 Uncommon (1/42) Not sold
Clue scroll (elite) Clue scroll (elite) 1 Rare (1/750) Not sold
Pet dagannoth rex Pet dagannoth rex 1 Very rare (1/5,000) Not sold

Rare drop table

In addition to the drops above, this monster has a 1/16 chance to access the standard rare drop table.

Show/hide rare drop table
Item Quantity Rarity GE market price
Coins 1000 Coins 3,000 Uncommon (1/93.09) Not sold
Loop half of key Loop half of key 1 Rare (1/101.61; 1/101.34)[R 1] 9,859
Tooth half of key Tooth half of key 1 Rare (1/106.91; 1/106.62)[R 1] 9,745
Uncut sapphire Uncut sapphire 1 Rare (1/409.6; 1/307.2)[R 1] 447
Runite bar Runite bar 1 Rare (1/409.6) 12,309
Nature talisman Nature talisman 1 Rare (1/590.41; 1/564.97)[R 1] 746
Nature rune Nature rune 67 Rare (1/682.67) 14,807
Rune 2h sword Rune 2h sword 1 Rare (1/682.67) 37,758
Rune battleaxe Rune battleaxe 1 Rare (1/682.67) 24,392
Uncut emerald Uncut emerald 1 Rare (1/819.2; 1/614.4)[R 1] 699
Law rune Law rune 45 Very rare (1/1,024) 7,515
Death rune Death rune 45 Very rare (1/1,024) 9,090
Steel arrow 5 Steel arrow 150 Very rare (1/1,024) 4,950
Rune arrow 5 Rune arrow 42 Very rare (1/1,024) 2,814
Adamant javelin Adamant javelin 20 Very rare (1/1,024) 1,400
Rune sq shield Rune sq shield 1 Very rare (1/1,024) 22,535
Dragonstone Dragonstone 1 Very rare (1/1,024) 11,574
Silver ore Silver ore 100 (noted) Very rare (1/1,024) 5,300
Uncut ruby Uncut ruby 1 Very rare (1/1,638.4; 1/1,228.8)[R 1] 1,305
Rune kiteshield Rune kiteshield 1 Very rare (1/2,048) 32,075
Dragon med helm Dragon med helm 1 Very rare (1/2,048) 59,004
Rune spear Rune spear 1 Very rare (1/2,162.01)[R 2] 11,882
Shield left half Shield left half 1 Very rare (1/4,324.02)[R 2] 66,203
Dragon spear Dragon spear 1 Very rare (1/5,765.37)[R 2] 37,508
Uncut diamond Uncut diamond 1 Very rare (1/6,553.6; 1/4,915.2)[R 1] 2,875
Rune javelin Rune javelin 5 Very rare (1/13,107.2; 1/9,830.4)[R 1] 880
  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 The drop rate is increased when wearing a Ring of wealth.
  2. 2.0 2.1 2.2 The drop rate is increased by an unknown amount when wearing a Ring of wealth.

References

  1. 1.0 1.1 1.2 1.3 Jagex. Mod Ash's Twitter account. 06 March 2018.
  2. Jagex. Mod Ash's Twitter account. 22 June 2016. Mod Ash: "He has a 1/128 chance of calling the talisman table; it has a 1/7 chance of giving an air talisman."


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