The Dagannoth Kings are a group of three Dagannoths that live deep in the cave on Waterbirth Island. They are each level 303 and represent the combat triangle, as each one of them uses a different combat style and are weak against the types that beats them.

The Kings

Dagannoth Prime: Uses Magic and is weak to Ranged attacks. His attacks are more potent than the other two kings. Use if he is targeting you.
Dagannoth Rex: Uses Melee and is weak to Magic attacks. If players venture too far out west to lure Dagannoth Rex, they risk attracting attention from both Dagannoth Prime and Dagannoth Supreme.
Dagannoth Supreme: Uses Ranged and is weak to Melee attacks. Weakest of the three Dagannoths.

Equipment

Equipment=

<tabber> Ranged Method=

Item (most effective → least effective)
Pernix Cowl	Gold Rift Void Range Helm	Armadyl Helmet	Serpentine Helm
Necklace of Anguish (or)	Necklace of Anguish	Amulet of fury	Amulet of glory
Ava Destructor	Ava Assembler	Ava's attractor	Ranging cape
Pernix Top	Gold Rift Void Top	Armadyl chestplate	Karils top
Pernix Chaps	Gold Rift Void Legs	Armadyl chainskirt	Karil's leatherskirt
Saradomin Godbow	Blazing Blowpipe	Toxic Blowpipe	Dragon crossbow
N/a	N/a	N/a	Anti-dragon shield
N/a	N/a	N/a	Ruby dragon bolts (e)
Ferocious Gloves	Gold Rift Void Gloves	Barrows Gloves	Barrows Gloves
Shadowfeather Striders	Pegasian boots	Ranger boots	Boots of brimstone
Ring of Power	Archers ring (i)	Ring of Suffering (i)	Archers ring

If you have a DK slayer task, use Slayer helmet

Slot	Item (most effective → least effective)
class="wikitable sticky-header" style=text-align:center;	Slot	Item (most effective → least effective)
	Inquisitor's great helm¹	Neitiznot faceguard	Torva full helm	Slayer helm (i)²	Serpentine helm or Helm of Neitiznot
	Amulet of torture	Amulet of fury	Amulet of glory	N/A	N/A
	(Slaughter/Master) Completionists cape	Tokhaar-kal	Fire cape	Max cape	N/A
	Inquisitor's hauberk	Statius's platebody	Torva platebody	Bandos chestplate	Dharok's platebody (or Barrows platebodies)
	Inquisitor's plateskirt	Statius's platelegs	Torva platelegs	Bandos tassets	Dharok's platelegs (or Barrows platelegs)
	Chaotic Rapier	Blade of Saeldor	Abyssal whip	Dragon hunter lance¹	N/A
	File:Dragonfire shield (uncharged).png Dragonfire Shield	Avernic Defender	Dragon Defender	N/A	N/A
	N/A	N/A	N/A	N/A	N/A
	Ferocious gloves	Goliath gloves	Barrows gloves	Dragon gloves	Rune gloves
	Primordial boots	Dragon boots	Bandos boots	Rock climbing boots	N/A
	Berserker ring (i)	Ring of Suffering (i)	Berserker ring	Ring of wealth (i)	Ring of wealth
	Bandos Godsword	Statius's warhammer	N/A	N/A	N/A

Item (most effective → least effective)
Virtus mask	Zuriel's hood	Ahrim's hood	Serpentine helm	Helm of Neitiznot
File:Third-age amulet.png Third-age amulet	Arcane stream necklace	Occult necklace	Amulet of fury	Amulet of glory
	Slaughter completionist cape	Completionist cape	Slaughter master cape	File:Max cape Max cape or File:Capes of accomplishments (trimmed).gif
Virtus body	Ancestral robe top	Zuriel's robe top	Ahrim's robetop	Mystic robe top
Virtus robe legs	Ancestral robe bottom	Zuriel's robe bottom		Mystic robe bottom
Kodai wand	Toxic staff of the dead	Chaotic staff	Zuriel's staf	Eldritch/Harmonised Nightmare Staff or Ahrim's staff
Arcane spirit shield	Farseer kiteshield	Ancient wyvern shield	Malediction ward	Mage's book
N/A	N/A	N/A	N/A	N/A
Tormented bracelet	Virtus gloves	Barrows gloves	Infinity gloves	Mystic gloves
Virtus boots	Eternal boots	Devout boots	Infinity boots	Wizard boots
Seers ring (i)	Seers ring	Ring of wealth (i)	Ring of wealth	N/A

Item (most effective → least effective)
Void helmets	Neitiznot faceguard	Serpentine helm	Helm of Neitiznot	N/A
Amulet of torture	Amulet of fury
Ava's accumulator	Ranging cape	Ava's attractor	N/A	N/A
Elite void knight top	N/A	N/A	N/A	N/A
File:Elite void knight bottom.png Elite void knight bottom	N/A	N/A	N/A	N/A

Spectral spirit shield	Dragonfire shield	Crystal shield	N/A	N/A
Ruby dragon bolts (e) + File:Diamond dragon bolts (e) 5.png Diamond dragon bolts (e)	File:Ruby bolts (e) 5.png Ruby bolts (e) + File:Diamond bolts 5.png Diamond bolts (e)	N/A	N/A	N/A
Ferocious gloves	Goliath gloves	Barrows gloves	Dragon gloves	Rune gloves
Pegasian boots	Dragon boots	Guardian boots	N/A	[[NA}}
Ring of Suffering (i)	Ring of wealth (i)	Ring of wealth	N/A	[[NA}}
Saradomin godsword	[File:Vesta's longsword.png]] Vesta's longsword	Statius's warhammer	Dragon claws	Dragon dagger