Dragon, Chromatic, Blue - World-Disk SRD

Stat block

AC0 (touch 0, flat-footed 0)HP0 ()SavesFort +0, Ref +0, Will +0MeleeSpeed40 ft., burrow 20 ft.AbilitiesStr 13, Dex 14, Con 13, Int 10, Wis 11, Cha 10BAB / CMB / CMD+0 / +0 / 0Environmentwarm deserts

Combat brain - every behavior cites its line (1 rules)

Built only from this entry: stat-block special attacks, the printed Int score, the creature type, its feats and senses, and the behavioral prose of its own description. Nothing invented - an uncited behavior is a test failure.

pack-hunter (from lore)
An adult blue dragon is surrounded by an aura of electricity.

From the entry

A blue dragon can cast create water at will (CL equals its HD). 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 or be destroyed. The save DC is Charisma-based. An 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. An old dragon's aura extends to 10 feet. An ancient dragon's damage increases to 2d6. An old or older blue dragon can make itself appear to be in two places at once as a free action for a number of rounds per day equal to its Hit Dice. This ability functions as project image but the dragon can use its breath weapon through the mirage. As a standard action, a great wyrm blue dragon can ...