The material below is Open Game Content from a 3PP Source
This hideous cross between a lobster, an octopus, and a human threatens enemies with powerful claws and writhing tentacles.
Piscodaemon (CR 10; 9,600 XP)
NE Medium outsider (aquatic, daemon, evil, extraplanar)
Init +8; Senses darkvision 60 ft., detect good, detect magic, see invisibility; Perception +16
AC 24, touch 14, flat-footed 20
(+4 Dex, +10 natural)
hp 137 (11d10+77)
Fort +14, Ref +7, Will +9
DR 10/good; Immune acid, death effects, disease, poison; Resist cold 10, electricity 10, fire 10; SR 21
Speed 30 ft., swim 50 ft.
Melee 2 claws +19 (2d6+7/18-20/×3 plus grab and 1d6 bleed), tentacles +17 (1d10+3 plus poison)
Special Attacks constrict (2d6+10)
Spell-Like Abilities (CL 11th; concentration +14)
Constant—detect good, detect magic, see invisibility
At will—dispel magic, greater teleport (self plus 50 lbs. of objects only)
3/day—fly, stinking cloud (DC 16)
1/day—summon (level 4, 1d3 hydrodaemons 35%)
Str 25, Dex 18, Con 24, Int 14, Wis 15, Cha 17
Base Atk +11; CMB +18 (+22 grapple); CMD 32
Feats Critical Focus, Improved Initiative, Multiattack, Power Attack, Sickening Critical, Vital Strike
Skills Escape Artist +18, Intimidate +17, Knowledge (planes) +16, Perception +16, Sense Motive +16, Stealth +18, Survival +16, Swim +29
Languages Abyssal, Draconic, Infernal; telepathy 100 ft.
SQ amphibious, augmented critical
Environment any (Abaddon)
Organization solitary, pair, or knot (3–5)
Augmented Critical (Ex) A piscodaemon's claws threaten a critical hit on an 18–20 and inflict ×3 damage on a successful critical hit.
Poison (Ex) Tentacles—injury; save Fort DC 22; frequency 1/round for 6 rounds; effect 1d2 Con plus staggered for 1 round; cure 2 consecutive saves.
These aquatic daemons roam the lower planes sowing misery and blight. They delight in drawn-out deaths, poisoning creatures or dismembering victims to watch them slowly bleed out. On their home plane of Abaddon, piscodaemons gravitate toward the same aquatic regions inhabited by hydrodaemons, and often the stronger among their ranks end up leading armies of hydrodaemons against their enemies. These creatures serve as sergeants in the hierarchy of Abaddon, and run their units with an excess of cruelty and violence.
Instead of preying on the weak, piscodaemons enjoy targeting strong, well-armored warriors, knowing the pain of their weakening poison rests poorly on shoulders accustomed to bearing heavy weights and delivering devastating blows.
Piscodaemons are 7 feet tall and weigh 400 pounds.