XP 38,400
LE Huge dragon (earth)
Init +4; Senses dragon senses; Perception +24
Aura electricity (5ft., 1d6 electricity), frightful presence (210 ft., DC 22)

AC 31, touch 8, flat-footed 31 (+23 natural, -2 size)
hp 207 (18d12+90)
Fort +16, Ref +11, Will +14
DR 10/magic; Immune electricity, paralysis, sleep; SR 25

Speed 40 ft., burrow 20 ft., fly 200 ft. (poor)
Melee bite +26 (2d8+13), 2 claws +25 (2d6+9), 2 wings +23 (1d8+4), tail slap +23 (2d6+13)
Space 15 ft.; Reach 10 ft. (15 ft. with bite)
Special Attacks breath weapon (100-ft. line, DC 24, 14d8 electricity), crush (Small creatures, DC 24, 2d8+13), desert thirst (DC 24)
Spell-Like Abilities (CL 18th; concentration +21)

Spells Known (CL 7th; concentration +10)

Tactics Blue dragons prefer to surprise foes if possible, and are not above retreating if the odds turn against them.

Str 29, Dex 10, Con 21, Int 16, Wis 17, Cha 16
Base Atk +18; CMB +29; CMD 39 (43 vs. trip)
Feats Combat Casting, Dazzling Display, Deadly Stroke, Extend Spell, Hover, Improved Initiative, Multiattack, Shatter Defenses, Weapon Focus (bite)
Skills Bluff +24, Fly +13, Intimidate +24, Knowledge (geography) +24, Knowledge (local) +24, Perception +24, Spellcraft +24, Stealth +13, Survival +24
Languages Auran, Common, Draconic, Giant
SQ sound imitation

Desert Thirst (Su)

A blue dragon can cast create water at will (CL 18). Alternatively, it can destroy an equal amount of liquid in a 10-foot burst. Unattended liquids are instantly reduced to sand. Liquid-based magic items (such as potions) and items in a creature's possession must succeed on a Will save (DC 24) or be destroyed.

Electricity Aura (Su)

A mature adult blue dragon is surrounded by an aura of electricity. Creatures within 5 feet take 1d6 points of electricity damage at the beginning of the dragon's turn.

Sound Imitation (Ex)

A very young or older blue dragon can mimic any voice or sound it has heard by making a successful Bluff check against a listener's Sense Motive check.