Seaweed Siren

This creature's three singing heads sway atop serpentine necks that extend from a bulbous body split by a wide, toothy mouth.

Seaweed Siren (CR 13)

Large Magical Beast (Aquatic)
Alignment: Chaotic Neutral
Initiative: +2
Senses: Darkvision 60 feet, Low-Light Vision; Perception +17
Aura: cacophony (100 feet, DC 22)

Speed: 30 feet, Swim 30 feet
Space: 10 feet

Defense

Armor Class: 26, touch 11, flat-footed 24 (+2 Dex, +15 natural, -1 size)
Hit Points: 184 (16d10+96)
Saving Throws: Fort +16, Ref +12, Will +8
Immunity: mind-affecting effects
Energy Resistance: fire 10, sonic 10

Offense

Melee: bite +25 (4d6+15/19-20)
Reach: 5 feet
Ranged: 3 sonic beams +17 (5d6 sonic)

Special Attacks: staggering gaze, Trample (1d10+15, DC 28)

Spell-Like Abilities (CL 16th; Concentration +19):

• At Will- Shatter (DC 16)
  
  
• 3/day- Charm Monster (DC 18), quickened Confusion (DC 18)
  
  
• 1/day- Bestow Curse (DC 18, ranged touch attack, 30 ft.)

Statistics

Str	Dex	Con	Int	Wis	Cha
30 (+10)	15 (+2)	22 (+6)	11 (+0)	16 (+3)	19 (+4)

Base Attack Bonus: +16
CMB +27
CMD 39 (47 vs. Trip)

Feats: Blind-Fight, Critical Focus, Deafening Critical, Improved Critical (bite), Precise Shot, Quicken Spell-Like Ability (Confusion), Skill Focus (Perception)

Skills: Bluff +12, Perception +17, Stealth +17 (+21 in water), Swim +18

• Racial Modifiers: +4 Stealth in water

Languages: Aklo; tongues

Special Qualities: false heads, Water Dependency

Special Abilities

Cacophony (Su)

A seaweed siren's noises disrupt spellcasting; casting within 100 feet of a seaweed siren requires a concentration check (DC 15 + the level of the spell being cast). All other concentration checks and Perception checks involving hearing made inside the aura have their DCs increased by 5. A siren can begin or end this ability as a free action. This is a sonic effect.

False Heads (Ex)

A seaweed siren's false heads can be severed. To sever a head, an opponent must make a sunder attempt with a slashing weapon targeting the head. A head is considered a separate weapon with hardness 0 and hit points equal to the siren's Hit Dice (typically 16 hp). To sever a head, an opponent must deal enough damage to reduce the head's hit points to 0 or fewer. Severing a head deals an amount of damage to the siren's body equal to the siren's Hit Dice. A siren can't attack with a severed head. A siren with no remaining heads can't use its cacophony ability or its spell-like abilities.

Sonic Beams (Su)

Each of the siren's false heads can fire a beam at a range of 60 feet, dealing 4d6 points of sonic damage.

Staggering Gaze (Su)

Staggered 1d6 rounds, 30 feet, Will DC 22 negates. This is a mind-affecting effect. The save DC is Charisma-based.

Water Dependency (Ex)

A seaweed siren can survive out of the water for 1 hour per point of Constitution (typically 22 rounds). Beyond this limit, a seaweed siren begins to suffocate.

Ecology

Environment: Any Coastlines
Organization: solitary
Treasure: standard


A seaweed siren is a predator that uses false humanlike heads on its upper appendages in order to lure prey. The heads babble nonsense words and fragments of overheard sentences. If spoken to, they respond with words from a similar language.

This behavior allows the seaweed siren to creep about under the water with only the heads showing, pretending to be swimming humanoids until it is ready to attack.