Dagon

Dagon is the demon lord of deformity, the sea, and sea monsters. He rules an Abyssal realm that consists of an immense ocean dotted above with strange and horrible islands and marked below with countless deep sea trenches and sunken cities. Dagon is 35 feet long, with the lower body of an eel, a horrific visage that evokes images of deep sea predators, and four long tentacles in place of arms.

Dagon almost always uses Power Attack in combat, taking a -9 penalty on all attack rolls but gaining a +18 bonus on damage rolls. He is never encountered without a large number of aquatic demons or monsters at his side that he uses as pawns in battles, often simply commanding them to attack foes while he hangs back in the shadows and observes the fight with his cold eyes. Immense sharks, hezrous, carnivorous whales, krakens, and shoggoths are the demon lord's favored minions.

Dagon began life not as a demon lord but as a powerful qlippoth—the reasons for his transformation into a demon lord are not understood by mortal scholars, but there is certainly no love lost between Dagon and the qlippoth race.

breath weapon, command aquatic creature, constrict (2d6+25), fast swallow, poison, swallow whole (transformation, AC 17, 67 hp)

compression, demon lord traits

Awesome Blow, Bleeding Critical, Combat Expertise, Combat Reflexes, Craft Wondrous Item, Critical Focus, Greater Bull Rush, Improved Bull Rush, Improved Critical (bite), Improved Critical (tentacle), Improved Initiative, Improved Trip, Improved Vital Strike, Lightning Reflexes, Power Attack, Quicken Spell-Like Ability (greater dispel magic), Vital Strike

Acrobatics +40 (+44 when jumping), Bluff +46, Intimidate +46, Knowledge (arcana) +45, Knowledge (geography) +42, Knowledge (history) +42, Knowledge (nature) +45, Knowledge (planes) +45, Knowledge (religion) +42, Perception +55, Sense Motive +47, Spellcraft +45, Stealth +35, Swim +61, Use Magic Device +43