Being a myth among the people of Aiers, there is not a single and only description of them, but in general it's common their description as miniature humanoid looking people, with small wings.
Pixies as MythEdit
For the kanov, the pixies are black as coal and have raven wings. For the Dwarfs, they are made of precious metals, and have mechanical golden wings. For the High elves, they look like miniature elves, with big eyes and insect wings. For Mourlicoun leaf elves (dryads), Wollumis, Sylvan elfs and Flairie elves instead, they have bright skin colours -green, blue, yellow-, bright magical light, and butterfly wings. For humans, they can be from beautiful miniature winged or wingless creatures to tall and large ones with a hole in their back. For the Orcs, it's a magical light, that can take shape of a bird, bat or a small or large elf.
Pixie origins in the myths of different races and species are less clear in the folklore, being variously an elven race, a different species, spirits, humans or members of other races and species cursed or stolen as kids, dead, or some form of demon, or a species completely independent of humans or angels.
Much of the folklore about fairies revolves around protection from their malice, by such means as cold iron (iron is like poison to fairies, and they will not go near it) or charms of rowan and herbs, or avoiding offense by shunning locations known to be theirs. Others however will represent them instead as good spirits, changing from race to race, and specie to specie.
In Ogre folklore for example, pixies are good spirits, who in case a ogre gets hungry, will leave herself to be caught and served as a snack.
For humans, in general they are seen as innocently evil, having as hobby for example kidnapping children, and placing instead changelings.
In High elven myths, Pixies are only female, and need to mate Brownies for reproduction. According to the flairie elves, the pixies hang instead with smurfs -or even are winged smurfs!-
Pixies and other wee folk, as creations of the High ElvesEdit
High elves, who for long searched to prove the existence of the fairies and pixies, ultimately failed. And so, in the city of the Wizards of the Coast, Dahl'Haran, some apprentices of wizards began to model golems and creations after these mythical beings.
At first, these golems only acted upon the direct desire of their masters and creations, and without their master's will, were mere dolls.
After the First War of the Power however, the wizards of the coast became very interested in the demonic arts, impressed how the demonic contraptions, golems and servants were capable of being not only dolls in the hands of their masters, but autonomous creatures, bound to the will to their masters, but at the same capable of moving and acting on their own, even if their master's will wasn't focused on them.
The elves of Dahl'Haran will study the arcane demonic arts to learn their secrets, and they will do great advances in the field of golems for the elven arts, as they tried to match the arts of the demons. In these experiments, will be created the first "created wee folks" that weren't only a doll or toy in the hands of their master, but an autonomous creature, due to the use of diminutive demon soul shards -and later, of demonic soul shards artificially created by the wizards of the coast-.
As the knowledge of Dahl'Haran of the creations extended -to the point of the creation of the Battleborn, the demon-hunter demons, created using demonic arts-, it will become a common subject in the University of the Mages of Dahl'Haran, having the high elven students to pass the class to create their own artificial fey, small pocket-size creatures.
In such a way were created the artificial Pixies, Fairies, Brownies, Bogles and Gnoles.
Being crafted by the high elven students, they were rather diverse, which explains the many classes, being the artificial Pixies and Fairies winged -some with insect wings, the others with butterfly ones, and being both classes, female-, the brownie -wingless and male-, the Bogles -who somebody suggests was actually a prank- and gnoles -which were like small scale mineral or metal golems-.
Once the students-for-mage passed their class of "Golems and Creations II", some kept their new artificial Fey, while others kept them in Fey Vivarum for people to adopt them as pets, or sold them.
But the fey, mischievous, sometimes proved to be quite a test for an owner, and so with all pets happen, negligent masters will either abandon their pets or they will escape: and so in Ushaenor there will roam free some artificial fey -who will perpetuate the myth of the real pixies.-