Ethereals

Ethereals is the broad term for the vast quantity of entities which inhabit the Ether. Such creatures take countless forms, and are viewed by the beings of the physical universe as anything from angels, demons, gods, faeries, or other sorts of spirits. All are capable of warping reality, especially within their own realms, but are also bound by the rules of Divine Law.

Appearance
Ethereals can appear in an almost infinite array of forms, though most of the weaker ones have a more set appearance. Powerful Ethereals are capable of altering their forms at will, though most have a preferred shape that they generally keep to.

Creation
Ethereals are formed through a variety of means. They can be brought into existence via sexual reproduction, crafted from raw Astral energy, or be formal mortal souls who were transformed into an Ethereal entity.

Immortality
Ethereals are not damaged by the effects of time, and are immortal in the sense that they do not age. However, they are still vulnerable to destruction, which can be achieved by having their essence absorbed by another Ethereal, or consumed to power a spell, or by having their essence damaged to the point that it is scattered and no longer able to concentrate enough of their essence to reform, a process known as Scattering. Without the use of magic, this last option must usually be done within the Ethereal's native plane, as whenever they travel between worlds, a portion of themselves is left behind, serving as a beacon to pull back the rest so it can reform, if ever it is dispersed. However, none of these methods can truly kill an Ethereal, as their consciousness will always survive to some degree, no matter how small.

Material Existence
Ethereals, due to the machinations of the one of their number known as Ynoch, are unable to properly exist within the myriad realms of the Matterium, the physical universe, due to the presence of the Interfold, the structure created to enforce order upon the Ether's natural chaos. The Interfold serves as a barrier between realms, and also disperses the essence of the Ether within the Matterium, and as a result, makes it so that Ethereals cannot properly exist there without something to hold them in place.