XP 12,800
CE Large dragon (water)
Init +5; Senses dragon senses; Perception +24
Aura frightful presence (180 ft., DC 19)

AC 28, touch 10, flat-footed 27 (+1 Dex, +18 natural, –1 size)
hp 161 (14d12+70)
Fort +14, Ref +10, Will +12
DR 5/magic; Immune acid, paralysis, sleep; SR 22

Speed 60 ft., fly 200 ft. (poor), swim 60 ft.
Melee bite +21 (2d6+10), 2 claws +20 (1d8+7), 2 wings +15 (1d6+3), tail +15 (1d8+10)
Space 10 ft.; Reach 5 ft. (10 ft. with bite)
Special Attacks breath weapon (80-ft. line, DC 22, 12d6 acid), corrupt water
Spell-Like Abilities (CL 14th)

Str 25, Dex 12, Con 21, Int 14, Wis 17, Cha 14
Base Atk +14; CMB +22; CMD 33 (37 vs. trip)
Feats Alertness, Improved Initiative, Improved Vital Strike, Power Attack, Skill Focus (Stealth), Vital Strike, Weapon Focus (bite)
Skills Fly +12, Handle Animal +16, Intimidate +19, Knowledge (arcana) +19, Perception +24, Spellcraft +19, Stealth +20, Swim +32
Languages Common, Draconic, Giant

Corrupt Water (Sp)

Once per day an adult or older black dragon can stagnate 10 cubic feet of still water, making it foul and unable to support water-breathing life. The ability spoils liquids containing water. Liquid-based magic items (such as potions) and items in a creature's possession must succeed on a Will save (DC 19) or become ruined. This ability is the equivalent of a 1st-level spell. Its range is 180 ft.

Speak with Reptiles (Sp)

A young or older black dragon gains the constant spell-like ability to speak with reptiles. This functions as speak with animals, but only with reptilian animals. swamp stride, water breathing

Swamp Stride (Ex)

A very young or older black dragon can move through bogs and quicksand without penalty at its normal speed.

Water Breathing (Ex)

A black dragon can breathe underwater indefinitely and can freely use its breath weapon, spells, and other abilities while submerged.