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.
- There is a separate cave available for those on a slayer task. Accessed by right clicking the ladder that leads to the Dagannoth Kings.
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.
- 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.
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.
- ^ Dropped in noted form if the player has completed the elite tier of the Fremennik diary
|Fremennik blade||1||2/128||Not sold||3,000|
|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|
|Mithril ore||25 (noted)||10/128||3,050||2,425|
|Iron ore||150 (noted)||1/128||18,000||1,500|
|Steel bar||15–30 (noted)||1/128||6,690–13,380||900–1,800|
There is a 1/128 chance of rolling the talisman 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.
|Nothing||N/A||1/19.87; Never[d 1]||N/A||N/A|
|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|
|Rune 2h sword||1||1/682.67||37,771||38,400|
|Uncut emerald||1||1/91.02; 1/46.22[d 2]||567||30|
|Rune sq shield||1||1/1,024||22,432||23,040|
|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|
|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 following Combat Achievement tasks involve Dagannoth Rex.