Blue dragon

Blue Dragons are the second weakest of the chromatic dragons but are still fairly powerful monsters. An anti-dragon shield is essential when meleeing them, but this may be skipped if ranging or maging them. They are a very popular monster to kill because the blue dragonhide and dragon bones that they drop may be sold for 0 coins. They do not drop the draconic visage.

If given blue dragons as a slayer task, a player may kill baby blue dragons as a substitute. When fighting these with melee, an abyssal whip is a good choice for players with 85+ attack and strength, especially with a super strength and/or super attack potion. Players may use an antifire potion if they don't want to take any damage from their firebreath attacks.

Locations

 * Taverley Dungeon (3) - Is usually crowded; has lots of stalagmites for safe spots for rangers and mages
 * Ogre Enclave (6) - Best place for Slayer tasks that are not assigned by Kuradal, or for money; has multiple safe spots and is generally uncrowded.
 * Heroes' Guild (1) - Usually has one or more people already there, safe spots available to range or mage, partially because it is caged. It is possible to enter to get your loot.
 * Kuradal's Dungeon (5) - Blue dragons can only be killed here when assigned as a slayer task from Kuradal.

Taverley Dungeon
This area is an ideal spot for rangers and mages, but due to its popularity, it is often crowded. Players of low to medium combat levels may face more potential dangers than those of higher levels. As baby blue dragons stop being aggressive after a player reaches 97 combat, level 97+ players should consider this a very good spot in an unpopulated world. However, it is a very popular spot, so it may take time to find such a world. You will need a dusty key in order to reach the blue dragons within the dungeon, unless you have an agility level of at least 70 (or 65 with summer pies), in which case a shortcut by the entrance leads straight to where the dragons are.

Ogre Enclave
The blue dragons here are only available for players who have completed the Watchtower quest. This place has many safespots for ranging or maging, and with six dragons here, it is easy to get one for yourself. This spot is not too far from the Yanille or Castle wars bank. A commonly used method is to use the ring of duelling to get to the Castle wars bank once the player has filled up their inventory. The player may then run back to the Ogre Enclave to repeat the process.

Heroes' Guild
A blue dragon is present in a cage in the cave below the Heroes' Guild. This is generally an ok place to train on them. If you are ranging, it is unnecessary to have an anti-dragonfire shield here. This spot though may be ideal for some as it has 2 safe spots for ranging and maging. Using a games necklace allows for quick banking by teleporting to the Wilderness Volcano and then teleporting back to Burthorpe. Banking this way takes approximately 1 minute. If you have access to the Warriors' Guild, you can bank there and come back without wasting any teleports or time as the Warriors' Guild is very close. Banking can also be done through Emerald Benedict in the Rogue's Den below the Toad and Chicken Inn. Another possible route is teleport to your desired location of banking, and teleport to your POH teleport, located in Taverley, and run north from there.

Kuradal's Dungeon
The blue dragons here may only be attacked if you are assigned blue dragons as your slayer task by Kuradal. There are safe spots for rangers and mages. Players may bank relatively quickly using a bank teleport (such as the Amulet of glory) and then returning to the dungeon using a Ferocious ring, a drop unique to the monsters in the dungeon. Alternatively, players may use the fairy ring in the ancient cavern and bank in Zanaris, providing that the player has repaired it.

Strengths and weaknesses
Blue dragons, like all dragons, have very high defence but are weak against range and stab attacks. Their melee attack can hit up to 109. As with all dragons, an anti-dragon shield or dragonfire shield is essential when fighting blue dragons as it reduces the maximum hit of their breath from 500 to about 50 (0 if used with an antifire potion). If a player wishes to kill them with a two-handed weapon, a simple anti-fire potion greatly decreases the accuracy and damage of the dragonfire. A super antifire will block all damage from dragon breath while removing the need for a protective shield. For melee, it is best to use stabbing weapons, such as a leaf-bladed sword or, to a lesser extent, a Dragon longsword, when killing these dragons. However, for higher levelled players, an Abyssal whip or other high levelled weapon will work very well.

Ranging from a safe spot is the most popular way to kill them (mithril crossbow or higher is recommended, since it may be used in conjunction with an anti-dragon shield). They can also be attacked safely with melee using a halberd since a regular chromatic dragons dragonfire is not long ranged.

These dragons are extremely weak against magic despite having dragonhide. Strangely, baby blue dragons have higher magic defense than adults. Like Karil, Blue dragons may have a very low, or nonexistent magic level, making whatever armor they're wearing ineffective against magical attacks.

100% drop

 * Blue dragonhide
 * Dragon bones

Arrows and runes

 * Nature rune (15)
 * Water rune (75)
 * Fire rune (37)
 * Law rune (3)

Weapons

 * dragon claws (common)
 * Adamant javelin (30) (rare)
 * Rune javelin (5) (rare)
 * Rune dagger (rare)
 * Rune spear (rare)
 * Dragon spear (very rare)
 * Mithril hatchet (rare)
 * Mithril spear (uncommon)
 * Steel battleaxe (common)
 * Adamant spear (rare)
 * Mithril kiteshield (uncommon)

Armour

 * Steel platelegs (common)
 * Mithril kiteshield (uncommon)
 * Adamant full helmet (uncommon)
 * Shield left half (extremely rare)
 * Dragon med helm (extremely rare)

Other

 * 11, 44, 132, 200, 320 or 440 coins
 * Nature talisman
 * Chaos talisman
 * Grimy herbs (Not including torstol)
 * Uncut gems (common)
 * Sapphire
 * Emerald
 * Ruby
 * Diamond (rare)
 * Clue Scroll (level 3) (rare 1/100)
 * Bass (common)
 * Adamant ore (common)
 * Loop half of a key (very rare)
 * Tooth half of a key (very rare)
 * Dragon egg (99 Summoning required)
 * Ferocious ring (only in Kuradal's Dungeon)
 * Starved ancient effigy
 * Perfect blue dragon scale (only when on a special slayer challenge from Vannaka)