Feywild

The Feywild, also called the Plane of the Faerie or simply Tavar'Barvor to its natives, is parallel plane to the Material Plane. It is a vibrant place, filled to the brim with life and nature, where emotions become far more intense than in the Material Plane, and the nature positively sings in a symphony.

Its antithesis is the Shadowfell, where all colour disappears into shades of grey, and all emotions grow dull.

Characteristics
Fey are magical creatures closely tied to the forces of nature. They dwell in twilight groves and misty forests. In some worlds, they are closely tied to the Feywild. Some are also found in the Outer Planes, particularly the planes of Arborea and the Beastlands. Fey include dryads, pixies, and satyrs, but also some elves who have, through their prolonged presence in the Feywild, become so infused with the power of that place as to become entirely new creatures, taking on aspects of the seasons and other natural phenomena. Many natives to the Feywild have supernatural abilities and a connection to nature or to some other force or place.

Natives to the Feywild are as a rule frivolous, and consider beings of other planes to be silly with all their seriousness and lack of appreciation for nature, but are usually willing to fight against evil, especially against those who would mar beauty. They're curious beings who like to make deals, and don't always realize that other people don't use deals as currency as it is in the Feywild.

Fey Crossings
The Feywild overlaps with the Material Plane in places, and creates these so-called Fey Crossings, which allow beings to travel between the planes without using magic. Often, the creature travelling does not notice it has crossed over to the other realm for quite some time, which can have deadly consequences.

The veil between the Material Plane and the Feywild is the thinnest at the midway point between the Spring, which is also when the two planes overlap the most, and it's the easiest to stumble into the other by accident. Similarly, the barrier between the Shadowfell and the Material Plane is thinnest at Samhain, exactly half a year away from Beltane.

Memory Loss
After a visit to the Feywild, all beings not native to the Plane lose their memories of their time to some extent. The more weak-willed lose them altogether, while those of stronger will retain a semblance of memory, but with the details gone.

Archfey
Archfey are fey beings who had, through rituals and worshippers, gained nearly god-like powers and established a position of preeminence among feykind. Each archfey has a unique appearance and set of abilities. Some archfey had previously been powerful individuals of some fey races, while others are spirits and personifications of nature itself, such as rivers, lakes, meadows, forests, etc., or reincarnations of animals or creatures of legend, and still others were elves who had been in the Feywild for so long, and were so powerful, that they transcended the bounds of mortality.

Some archfey are regarded as deities and granted divine abilities to their worshipers. Archfey could be contacted by a willing warlock to form a pact. Archfey were of comparative strength to demon princes or archdevils.

Notable Archfey
Ilvisar is the Archfey of knowledge. Has a seemingly endless library in a demiplane accessible only to himself and those he invites. Lady Orchid is the Archfey of nature. She has a deep rooted desire to protect and preserve nature in all its magisty, both perfect and imperfect. She will always endeavour to protect it, and expects her worshippers to do the same. Her and her followers seek to remove and destroy anything that threatens to harm nature or taint its landscape with dark magic.

Fey dragon
The Feywild is native to a type of lizard known as the Fey Dragon. It is an intelligent, if chaotic, creature with a strong sense of empathy and a willingness to help beings in need.

It resembles its Material Plane kin in limb arrangement, but its appearance mirrors that of the Fey plane, and so does its diet: it is entirely herbivorous, living off the nature around it. This in turn funnels its unique Fey-like abilities; it is capable of creating and manipulating nature as it wills, and its breath, instead of causing direct harm to the individual, is capable of charming even the strongest of minds and putting them under its control.

It is unclear whether the lifespan of a Fey dragon is similar to its Material Plane counterparts, as there is no data to extrapolate it, and the dragons themselves are silent on the issue.

Some argue that the Fey dragons should themselves be counted as Archfey, due to their power and status in the realm, while others protest on the grounds that Archfey are a category to describe humanoids of significant power and connection to the Feywild and nature, whereas dragons are not humanoid.

The behaviour of the Fey dragons tends to be quite generous, and their idea of a perfect government is that of a socioeconomic order structured upon the ideas of common ownership of the means of production and the absence of social classes, money, and hierarchy.