Kage Elves

The kage elf, also known as the night elves, or dark fey are the result of the corruption of sidhe within the Shadowfell, a realm deep in the court of winter. Corrupted by the endless night, and darkness of this realm, they are look to be in a perpetual state between life and death. They have not faded away completely to undeath, because of their fey immortality, but are not quiet living either. They have dusky gray or pale skin and black or gray hair, typically void of colors that are usually vibrant in the Othersphere. Many of them have dark eyes lacking any sclera or visible pupil. Because of their place in the Shadowfell, many of them are placed there as banishment from Queen Mórrígan's court, and choose to use their position to hunt and slay undead in an attempt to lesson the hoard.
Ability Score Increase: Your Dexterity score increases by 2 and your Constitution score increases by 1.
Age: Although elves reach physical maturity at about the same age as humans, the elven understanding of adulthood goes beyond physical growth to encompass worldly experience. An elf typically claims adulthood and an adult name around the age of 100 and can live to be 750 years old.
Size: Elves range from under 5 to over 6 feet tall and have slender builds. Your size is Medium.
Speed: Your base walking speed is 30 feet.
Darkvision: Accustomed to twilit forests and the night sky, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.
Fey Ancestry: You have advantage on saving throws against being charmed, and magic can't put you to sleep.
Trance: Elves do not sleep. Instead they meditate deeply, remaining semi-conscious, for 4 hours a day. The Common word for this meditation is "trance". While meditating, you dream after a fashion; such dreams are actually mental exercises that have become reflexive after years of practice. After resting in this way, you gain the same benefit a human would from 8 hours of sleep.
Keen Senses: You have proficiency in the Perception skill.
Necrotic Resistance: You have resistance to necrotic damage.
Blessing of the Shadowfell: As a bonus action, you can magically teleport up to 30 feet to an unoccupied space you can see. Once you use this trait, you can't do so again until you finish a long rest. Starting at 3rd level, you also gain resistance to all damage when you teleport using this trait. The resistance lasts until the start of your next turn. During that time, you appear ghostly and translucent.
Cold Iron Vulnerability: A Kage Elf is vulnerable to cold iron, as with most fey
Languages: You can speak, read, and write Common and Sylvan.

Naming Traditions

Unisex names

Most beings of the Othersphere only have one name and they are the only ones with that name. They consider names to be of great power, not as a means of control, but as a way of becoming a legend without ambiguity as you alone hold that name.

Culture

Common Etiquette rules

The fey's natural nature is to entrap mortals with bargains and deals, or accept anything offered by a mortal, since it opens a pipeline for magic. Anything other than equal exchange can be either enticing or insulting. A mortal, typically, should not accept or offer anything in trade. Additionally a promise or an oath is binding to the fey. They cannot lie (though may speak in riddles and misleading sentences), and they will make sure a mortal does the same when it comes to deals made. A promise thrice made is so close to the absolute truth as a fey can give. Additionally, asking a question three times bines the third answer as absolute truth.

Common Myths and Legends

The Song of Three Sisters is a common story around the Fey.

Ideals

Beauty Ideals

Kage Elves are of two mindsets. Some prefer appearances that are unusual among their kind, from bright or vibrant colors (such as red), or tan or coppery skin tones. Its unique to them, and reminds them of why they fight, or what they have left behind. Some lean into their affliction, preferring people that truly embodies what it means to be a Kage elf, from the pale death like skin, and features devoid of any coloration.

Gender Ideals

Among the fey, gender is extremly fluid to the point that typical roles do not exist, people simply are as they wish to exist, and titled appropriately. Even Queen Mórrígan has been known to take on the form of a man on occasion. King Cernunotus sometimes takes the form of Badhbh, a female being of black hair, and a black feather cape that becomes a representative of Nauma. It's all a matter of preference in appearance among the fey. They have a very relaxed system of courtship and relationships.