Beastiary : my own version

Succubi

A succubus, and there male counterparts an incubus, is a race of half demons known for there influence and beauty, all Succubi have naturally flawless skin, perfect bodies, smooth lips and luscious hair. They embody the perfect human however most have a dark soul hidden within, due to there demonic nature and will use there beauty to influence others for there own benefit.

They usually feel no sympathy towards others or any guilt for the damage there manipulation may cause, seeing it as simply part of there nature, some even get a sadistic rush for the pain they cause.

When shifted a Succubus will gain pristine porcelain skin meaning any scars or tattoos they gained in life will seemingly fade away until the succubus shifts back into human form. They're hair and lips will change in colour becoming a rich ruby and there eyes become a clear, glass-like green which matches the faint, delicate, glowing green cracks that run gracefully round there face, neck and body, the amount and prominence of these cracks increase with age which serves as a physical reminder of succubi's fear of the passage of time and losing there beauty.

Feeding:
They do feed from humans and other supernaturals which more often than not results in chaos, destruction and death. They feed on attention, literally draining the emotional energy out of there victims which normally results in death. Although feeding isn't necessary for a succubus's survival it does give them a rush of power and euphoria, it can be difficult to fight the urge to feed.

They feed via kissing, due to the chemical toxin that is released from there lips, once kissed a victim will become insanely obsessed with the Succubi causing them to lie, cheat and kill for there obsession, it also increases the victims adrenaline granting them greater strength, endurance and resistance to pain. This obsessive effect will slowly grow over time until the victim dies seemingly from a heart attack, this process can normally take a few days to a few weeks, when in fact the succubus has drained them completely of energy as she has been feedings off there obsession, the length of time the victim survives is up to the succubus depending on how quickly she drains them. If a supernatural being with a healing factor is kissed then the effects of the toxin are increased making them almost completely obsessed to the point of death much quicker however the victim will simply fall unconscious instead of die when reached the final stage and once awakened will no longer be effected, unless infected again, but will be temporally weakened from the Succubi's feeding.

Cure:
Despite all the effects the succubus's infectious kiss can be cured by either two ways, the first being the consumption of a concoction of powered nightshade, juniper and rose water. The second being if the succubus chooses to release a victim (or victims) from her influence which she can do at any time. Killing the succubus would not save the victims as anyone infected would die along with her unless they have a supernatural healing factor.

Powers and abilities:
Succubi may appear less physical threatening than most Cambions however there use of manipulation and seduction makes them just as deadly as any other demon.

Longevity: Like other Cambions they can live much longer than humans, able to live for hundreds, possibly even thousands of years.
Enhanced strength: Succubi have strength above that of a ordinary humans. Although there natural strength isn't overly powerful compared to other supernaturals. Their strength however can become greater while feeding, the amount greater depends on number and species of what they're feeding on.
Enhanced endurance: Succubi can take more physical damage then ordinary humans capable of withstanding multiple bullets and knife wounds without being seriously harmed.
Attraction: This power can be focused on one person or a crowd but either way makes the person effected instantly notice and be attracted towards the succubus. They often use this to make there victim come over to pursue them to arose less suspicion.
Toxic kiss: As explained above if a Succubus kisses someone then they become complexly obsessed and under the control of the succubus which will feed her thirst for attention and emotional power until they are completely drained of energy and die. This is sometimes referred to as "the kiss of death".
Telepathy: Succubi have the ability to read the minds and memories of others, they use this to know their victims deepest darkest desires and secrets. 
Supernatural sense: A succubus appears to be able to detect whether someone is supernatural or human just by being in there presence however it takes practice and knowledge to be able to determine what kind of supernatural someone is using this sense.

Weaknesses:
Despite there capabilities Succubi can be defeated and killed.

Cure: A concoction of powered nightshade, juniper and rose water can cure someone of the intoxication caused by a succubus's kiss.
Holy objects: Holy objects such as crosses or holy water will hurt but not kill a succubus.
Sacred ground: They can't step on holly ground such as churches , temples or places protected by witches without setting on fire or being stop by an invisible wall.
Increased physical trauma: Despite there high endurance they can be killed by a lot of damage to their physical form.