Siren

"My ancestors always said it had different meanings: Great love to some, but to others it could be dangerous. "

Sirens are mermaids who are able to lure sailors towards rocky shores via their hypnotic singing, causing the sailors to crash into the rocky coast of their island, meeting a watery demise.

Physiology
The appearance of a Siren varies depending on the individual, but they generally appear as dominantly Human in form, unless in their two monster states. In their monster form, their teeth are dagger-like and their skin looks like scales; silvery-gray scales for mermaids. Their hands are talons and a dorsal fin is emerged from their backs. Their legs are fused together to form a scaly fishtail. They look similar to mermaids, and can be mistaken for them easily.

Powers and Abilities

 * Amphibious Transformation: Merfolk are able to take on an ordinary human appearance through a painful metamorphosis to blend in with modern society and avoid being detected for varying lengths of time. Merfolk who gained legs and later went back into the water go through a painful transformation process. Their teeth become dagger-like and their skin turns into scales; silvery-gray scales for mermaids. Their hands become talons and a dorsal fin emerges from their backs. Their legs fuse together to form a scaly fishtail. Merfolk can only transform in ocean water, proven when Marianna was pushed into a swimming pool but remained in her human-like state. When they transform into their human-like forms, they shed their scaly fishtails


 * Aquatic Habitation: Sirens can survive and adapt to underwater environments such as high water pressure and extreme water temperatures.
 * Claws: Sirens possess sharp claws and can use them to inflict fatal wounds onto humans at free will.
 * Enhanced Durability: The tissues and bones of siren are considerably more durable and resistant to physical damage than that of humans or lower supernaturals.
 * Enhanced Speed: Sirens are incredibly fast.
 * Extraordinary Strength: Sirens are naturally stronger than humans.
 * Hypnotic Voice: A siren's voice can mesmerize humans, especially when they sing.
 * Sonic Scream: Sirens can emit a hypersonic blast of concussive force strong enough to shatter objects as tough as concrete. Marianna's voice functions like the ultrasound of a dolphin, causing damage and total breakdown of tissues on a cellular level.


 * Speed Swimming: A Siren's powerful and streamlined tail and huge flukes can propel them through the roughest waters with incredible speed, grace and agility with minimal restrictions to water resistance. Like a dolphin, their fins can propel them high out of the water.


 * Siren Song: Sirens are able to emit a captivating singing voice that lures anyone who hears it toward the singer. Apparently those who are exposed to it have lingering side effects; the exact nature of these symptoms are as of yet not clearly defined. Eventually, the Siren Song leads the person that hears it to hallucinate seeing that mermaid everywhere and hearing their Siren Song out in the ocean. The person will then be driven into the water to find that mermaid and eventually drown. The song can be effective on anything or anyone, including men, women, and even animals.


 * Regeneration: Sirens possess greater regenerative capabilities than those of humans. They heal quickly from non-fatal injuries within a short period.

Known Sirens

 * Marianna
 * Oliver Richards (Quarter)

Trivia

 * The Siren Song has different, stronger mind-blowing effects on the one who hears it more than once; from great love to dangerous obsession.
 * It is shown that the lethal voice of a Siren can be recorded and play back with the same lethal effects, as shown when Rose recorded Marianna's voice on her phone and playing it will cause death on Humans and temporary blindness to monsters.
 * Sirens have circular markings on their tongues, as seen with close ups of Marianna. These patterns may what give sirens the ability to use their voices as weapons.
 * When a Siren sings, a glow can be seen in the back of their throat (likely from the vocal cords).


 * When used offensively, the soundwaves of a Siren's voice appear as pulsating rings.