Zanna

Zanna are a type of creature that act as guides and guardian angels to children in need of them. They do so under the guise of being a child's imaginary friend for as long as the child needs them, but once the child no longer needs them, the Zanna leaves and moves on to another child.

Characteristics
The four known Zanna so far take on humanoid forms, possibly to appease the child. Each one has a unique ability and attribute, such as Sparkle having sparkly blood.

They are very docile and do not wish to cause harm to others, much less to one of their own. They are playful, patient and full of wisdom and knowledge, making them very suitable for kids.

Zanna also date one another and presumably reproduce in this manner. It is unknown if Zanna require food. Their origin is also a mystery. Their sole purpose is to entertain little children and it appears they only choose human children.

Powers and Abilities

 * Invisibility - Zanna are only invisible to humans unless a Zanna allows a human to see them or a spell is cast.
 * Telepathy - All Zanna are mentally connected with each other.
 * Teleportation - Sully was able to teleport into the Men of Letters bunker. It's very unique, because the bunker itself is magically warded, and Zanna are able to bypass it.
 * Magic - Zanna have a limited range of magical powers typically passive in nature including conjuration, empathic sensing, and glamouring.
 * Perception Altering - While naturally invisible to everyone around them, zanna are capable of making it so that people see as they see, resulting in the affected person seeing other zanna even when they are intentionally invisible to them.

Weaknesses

 * Magic - Although invisible to humans, a spell can be cast to allow humans to see Zanna.
 * Zanna-killing knife - Reese was able to get a knife from a witch that could kill Zanna. It was branded with Romanian Cyrillic sigils or spellwork.
 * The First Blade - It can kill anything.
 * Death's Scythe - It can kill anything.

Known Zanna

 * Nicky (Deceased)
 * Sparkle (Deceased)
 * Sully
 * Weems

Appearance

 * Season 11
 * Just My Imagination

Trivia

 * Zanna or in its original Romanian spelling Zână (plural zâne; zînă and zîne, d̦ână and d̦âne in old spellings), is the Romanian equivalent of the Greek Charites. They are the opposite of monsters like Muma Pădurii. These characters make positive appearances in fairy tales and reside mostly in the woods. They can also be considered the Romanian equivalent of fairies and of the Germanic Elf. They give life to fetuses in utero and bestow upon them great gifts like the art of dancing, beauty, kindness, and luck. In folk tales, it is told not to upset them because they also have the power to do bad things or put a curse on the wrongdoer. They also act like guardian angels, especially for children who enter the woods, or for other good people. The word zână comes from the Roman goddess Diana (as does Astur-Leonese xana). She is the one who has all the beauty, and is the one that gives it away. Zână is also used in current Romanian slang to refer to an attractive girl, though it is not necessarily the kindest way to do so.
 * Word "Zanna" have similar structure like Arabic "Jann", which later Arabic word Djinn derived from it, whose primary meaning is "to hide". Some Arabic authors interpret the word to mean, literally, "beings that are concealed from the senses", it may be referenced to Zanna's ability in invisibility.
 * In Islamic and Javanese cultures, Djinn also often reported if they like interacted with children from simply accompany to heavily disturbing them. It may be also referenced Zanna's ability to interact with human children.