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Adult Blue Dragon

Huge Dragon (Chromatic) · · CR 16

  • Dragon (Chromatic)
  • Huge
  • Tier 3

Adult Blue Dragon is a huge dragon (chromatic) of lawful evil alignment, CR 16. Found in coastal and desert. Sourced from Monster Manual (5e 2014) and Monster Manual (5.5e 2024).

Stat Block

Challenge Rating
16
Type
Dragon (Chromatic)
Size
Huge
Alignment
Speed
Habitats
Coastal, Desert
Sources
Monster Manual (5e 2014), Monster Manual (5.5e 2024)

Ecology

Blue dragons rule deserts and dry coastal cliffs, lairing in deep caves carved by sandstone erosion or burrowed by their own claws. They feed on giant lizards, camels, and elephants, but prefer to extort tribute from desert tribes who deliver livestock weekly. Their lightning fuses sand into glass, and a blue's territory can be identified by glass-pillared monuments and vitrified hunting trails. Sandstorms intensify near their lairs, and ozone hangs in the air for miles.

Behaviour

Adult blue dragons are vain, methodical, and obsessed with status. They negotiate with mortal kingdoms as equals, demanding tribute in gemstones, slaves, and rare information. They keep meticulous mental ledgers of debts owed and remember slights for centuries. A blue dragon prefers to outwit prey rather than overpower it, and sees combat as a failure of planning. Many blues raise charmed humanoid courts in their lairs, treating them as both servants and an audience for their own self-aggrandizement.

Origin

Blue eggs are laid in deep desert chambers and incubated by trapped lightning rather than the mother's heat. Wyrmlings emerge already territorial and begin hunting at one week old. Young blues serve older relatives as scouts and messengers, building reputations before claiming their own territory. By adulthood, a blue has typically conquered or absorbed a smaller rival's domain, doubling its hoard and political reach. Adult blues respect dragon hierarchy more than chromatics typically do.

CR 16 monstersAll Dragon (Chromatic)sCoastalDesert

Related Monsters

Frequently Asked Questions about Adult Blue Dragon

What is the challenge rating of Adult Blue Dragon?
The CR on Adult Blue Dragon is 16. That CR matches tier-3 encounter math.
What type of creature is Adult Blue Dragon?
The bestiary type for Adult Blue Dragon is dragon (chromatic), huge size.
Where does Adult Blue Dragon live?
Adult Blue Dragon's listed habitats include Coastal, Desert.
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Scannable QR code encoding the URL https://www.doungim.com/dnd/monsters/adult-blue-dragon. Point a phone camera at this code to open the Adult Blue Dragon page on your mobile device — useful at the table when a DM's laptop or a printed sheet is showing the page.