Mithril dragon

Mithril dragons are found in the Ancient Cavern, which may be accessed by starting the Pyre ship section of Firemaking in Barbarian Training. The dragons have extremely high defence, but since they are made of metal, they are weak to magic attacks.

Mithril dragons are currently the strongest dragons. Their release shattered the King Black Dragon's long standing record as being the strongest dragon in RuneScape.

Strengths and Weaknesses
Its Melee attacks can hit 28s, and its Mage and Ranged attacks can hit 18s, and they are not firebreath attacks. They do not use their ranged attack if the player is within melee distance of the dragon. Mithril dragons are also immune to poison. Many high-leveled players have stated that they can only kill several in one trip unless they are using a Familiar.

Ranged
The most common approach to Mithril dragons is Ranging using enchanted ruby and diamond bolts. The ruby bolts special effect will remove a sizeable portion of their hitpoints (up to 50) and diamond will decrease their Ranged defence. Ruby should only be used while the target is above half health, below half and the special effect will start to take away smaller portions that could be hit without the enchanted effect. Karils or Armadyl armour is a much better choice over Black dragonhide because of the increased magic defence. The Protect from Missiles prayer is recommended when using Ranged, especially for players with lower defence who are not using a Dragonfire shield.

Recommended equipment
 * Armadyl helmet < God coif or Mitre < Seers' headband 3
 * Armadyl chestplate < Karil's leathertop < Black d'hide body
 * Armadyl plateskirt < Karil's leatherskirt < Black d'hide chaps
 * Barrows gloves < Black d'hide vamb
 * Ranger boots < Snakeskin boots < Infinity boots - Silly jester boots
 * Amulet of fury < Amulet of glory or Stole < Holy symbol - Unholy symbol
 * Ava's accumulator
 * Rune crossbow
 * Dragonfire shield or Anti-dragon shield
 * Archers ring or Explorer's ring or Ring of life or Ring of wealth
 * Ruby bolts (e) and Diamond bolts (e) or Emerald bolts (e)

Tanking equipment Note: Mithril dragons are immune to poison, so mithril bolts would be a better recommendation, as opposed to Emerald bolts (e)
 * Torag's helmet - Guthan's helmet or Armadyl helmet
 * Armadyl chestplate < Karil's leathertop < Black d'hide body
 * Torag's platelegs - Dharok's platelegs
 * Barrows gloves < Black d'hide vamb
 * Ranger boots < Snakeskin boots or Metal boots
 * Amulet of fury < Amulet of glory or Stole
 * Ava's accumulator or Fire cape or Skill cape (t)
 * Rune crossbow
 * Dragonfire shield
 * Archers ring or Explorer's ring or Ring of life or Ring of wealth
 * Ruby bolts (e) and Diamond bolts (e) or Emerald bolts (e)

Melee
The less commonly seen method is using melee, and is best attempted with a Slayer helmet while Mithril dragons are the assigned task. Protect from Melee is a must while meleeing. Mithril dragons will hit up to 28 even against armour as strong as Torags. Karil's is best used instead of Armadyl due to the negative Melee bonuses given by Armadyl.

Recommended equipment
 * Slayer helmet < Black mask
 * Karil's leathertop < Armadyl chestplate
 * Karil's leatherskirt < Armadyl plateskirt
 * RFD gloves
 * Dragon boots or Climbing boots
 * Fire cape or Cape of accomplishment
 * Amulet of fury < Amulet of glory
 * Leaf-bladed sword and Dragon dagger
 * Dragonfire shield < Anti-dragon shield
 * Explorer's ring 3 or Ring of life

Magic
The spell Claws of Guthix has shown to be very effective against Mithril dragons, with its ability to remove a sizable portion of their defence. This comes at the cost of the player's own defence as magic armour has significantly less defensive value than Ranged or Melee.

Familiars
Familiars will significantly extend the number of kills per trip, the most popular being the Bunyip and Fruit bat for their ability to heal a player's hitpoints. Familiars can NOT be taken through the whirlpool so any familiar will have to be summoned from a pouch the player has brought with them. This also means that a Beast of Burden can not be used to bring extra supplies; however, they are still favourable if one wishes to collect the mithril bars and dragon bones to help pay for the cost of the trip. The elemental titans are a step up from the Bunyip and Fruit bat, negating the need to bring down a Defence booster with its active scroll ability boosting the Summoner's defence and HP. Omega of the healing familiars, the Unicorn Stallion can help the player get up to 30 kills per trip, assuming the player receives some shark drops.

Chewed bones
See full article.

Chewed Bones are the bones of barbarians who have fallen victim to the Mithril dragons. Brutal greens, while believed to drop these bones, have been officially confirmed not to drop chewed bones. They drop the mangled remains of chewed bones. They can be burned on a pyre ship and in return the Barbarian spirit that appears will give the player an item.

Habitat(s)
The Ancient Cavern.

Weapons

 * Rune battleaxe (common)
 * Rune spear
 * Rune mace
 * Rune 2h sword
 * Dragon spear (uncommon)

Armour

 * Dragon full helmet (extremely rare)
 * Rune medium helmet
 * Rune full helmet
 * Dragon medium helmet (uncommon)
 * Rune Sq Shield (uncommon)

Arrows and runes
they drop a lot of stuff

Charms

 * Gold charm (4)
 * Crimson charm (4)
 * Blue charm (4)
 * Green charm (4)

Potions

 * Super attack potion
 * Super strength potion
 * Super defence potion
 * Super attack mix
 * Super strength mix
 * Super defence mix
 * Prayer mix
 * Prayer potion

Other

 * Coins (600-3000)
 * Shark (1, 6)
 * Runite bar (1, 2)
 * Gems
 * Silver ore (100 noted)
 * Herbs
 * Uncut gem
 * Ancient page
 * Chewed bones (rare)
 * Clue Scroll (Level 3) (uncommon)
 * Loop half of a key (uncommon)
 * Dragon shield half (uncommon)
 * Draconic visage (very rare)

Trivia

 * Mithril Dragons are the only Slayer task that Duradel and Lapalok do not give advice for; "You are a battlemaster; test your skills."