Mature Adult Black Dragon CR 12
CE large dragon (water)I
Init +5; Senses dragon senses, blindsense 60’, darkvision 120’ Perception +26
Aura frightful presence (210 ft., DC 20)
AC 31, touch 10, flat-footed 30 ( +1 Dex, +21 natural, -1 size)
hp 184 (16d12 +80)
Fort +15, Ref +11, Will +13
DR 10/magic; Immune acid, paralysis, sleep, SR 23
Speed 60 ft., fly 200 ft. (poor), swim 60 ft.
Melee bite +24 (2d6 +12), 2 claws +23 (1d8 +8), 2 wings +18 (1d6 +4), tail slap +18 (1d8 +12)
Space 10 ft. Reach 5 ft. (10 ft. with bite)
Special Attacks breath weapon (60 ft. cone, DC 23, 14d6 shadow shards)
Spell-Like Abilities (CL 16th, concentration +18)
At will—darkness (70-ft. radius)
Spells Known (CL 5th, concentration +7)
2nd (5/day)—blur, summon swarm
1st (7/day)—alarm, mage armor, magic missile, obscuring mist
0 (at will)—dancing lights, detect magic, mending, message, read magic, prestidigitation
Str 27, Dex 12, Con 21, Int 14, Wis 17, Cha 14
Base Atk +16 CMB +25 CMD 36 (40 vs. trip)
Feats Alertness, Combat Expertise, Improved Initiative, Improved Vital Strike, Power Attack, Skill Focus (Stealth), Vital Strike, Weapon Focus (bite)
Skills Fly +14, Handle Animal +18, Intimidate +21, Knowledge (arcana) +21, Perception +26, Spellcraft +21, Stealth +22, Swim +35; Racial Modifiers +8 Swim
Languages Common, Draconic, Giant
SQ corrupt water, speak with reptiles, swamp stride, water breathing
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 equal to the dragon’s frightful presence) or become ruined. This ability is the equivalent of a 1st-level spell. Its range is equal to that of the dragon’s frightful presence.
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 (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