Frost dragon

Frost dragons lurk in the highest level Resource dungeon available to players. The dungeon requires level 85 Dungeoneering to access, and inside are a total of 12 dragons to kill. Frost dragons attack with both melee and magic (which looks like water spells) as well as their dragonfire. Like all dragons, they are weak to stab attacks.

Habitat
Frost Dragons are found in the hidden resource dungeon in the Asgarnian Ice Dungeon.

Strategies
The most effective weapon to kill them with is a Chaotic rapier or Chaotic longsword because of their high stab bonuses. The second most effective is a Zamorakian spear (although if a Zamorakian spear is used, super antifires would have to be used).

Wearing armour with high melee defence and praying Protect from Magic or Deflect Magic is a great way to fight as the prayers will not only nullify the damage from a dragon's magical attack, but will also reduce (not completely resist) the dragonbreath's damage.

Wearing Karil's and praying Protect from Melee or Deflect Melee is not advised as their magic attack is extremely accurate and easily hits through Karil's defense.

Another strategy is to use full ranged void while praying Protect from Magic or Deflect Magic as you will take no damage as long as you remain at a distance and have proper protection from dragonfire.

When using magic, fire spells are recommended due to their natural weakness of fire.

Due to the fact that Frost dragons drop Frost dragon bones, killing them is very profitable since the bones are currently worth each, making over 600,000 per trip with a full bag of bones, and much more if using a beast of burden familiar.

The best way to kill them is to use a full set of armour that has high defence against melee attacks with the Protect from magic or Deflect Magic prayer on and to set up a Dwarf multicannon. With the cannon you can earn you up to 4,000,000 coins per hour.

100% Drops

 * Frost dragon bones

Weapons and armour

 * Adamant kiteshield
 * Adamant platebody
 * Rune dagger (rare)
 * Rune longsword (uncommon)
 * Rune Javelin (rare)
 * Rune spear (Very rare)

Runes/Talismans

 * 14 Water runes (rare)
 * 10 Law runes
 * 10 Blood runes
 * 10, 15 Death runes
 * 2 Water talismans (noted)
 * 2 Air talismans (noted)
 * 50 Pure essence (noted)
 * 1 Nature talisman (rare)

Other drops

 * Coins (200-500, 1337)
 * 3 Adamantite bars (noted)
 * Clue scroll (level 3)
 * Draconic visage (Very Rare)
 * 1 Herb (up to Dwarf weed) (noted)
 * 1 Limpwurt root (noted) (uncommon)
 * 3 Mahogany logs (noted) (uncommon)
 * 12 Rune arrows (common)
 * 5 Rune javelins (rare)
 * 1, 2 Sharks
 * Shield left half (very rare)
 * Starved ancient effigy (rare)
 * Uncut gems (Sapphire, Emerald, Ruby, Diamond, Dragonstone is rare.)
 * 2 Water orbs (noted)
 * 100 Silver ore (noted)
 * Loop half of a key (very rare)
 * Tooth half of a key (very rare)

Trivia

 * A glitch exists when one frost dragon initiates combat with one player. If another player attacks that dragon, it will continue to attack the first player and will not switch its attacks to the attacking player. The first player would not be able to attack another dragon until he or she retreated out of its range or the attacking player killed it. This glitch is even more pervasive when cannons are used. This glitch has not been fixed yet.
 * Frost Dragons are often hunted for their infamous frost dragon bones, the highest prayer exp-giving bones there are.
 * Unlike other adult and non-revenant dragons, the frost dragon doesn't drop hides or metal bars.