Demiplane

Small alternate realities, usually artificial in origin, are commonly known as Demiplanes. Most commonly created by powerful magic-users, psychonauts, or psionicists, Monsters, and Divinities, Demiplanes are "pocket worlds" that can be utterly miniscule or vast enough to rival a universe itself. The exact mechanics by which these realms come into existence vary, as do their internal conditions and properties, and how they interact with the world around them. Some individuals possess distinct internal Demiplanes linked with their Mindscapes from which they can deploy a range of effects, for example. Others possess localized ones they can use, such as a Kikimora's Hidey Hole ability. Still more learn to create and shape realities through the use of Arcane, Occult, or Divine Magic, and at least one individual in Gaea's history, a Wayfarer known as the Grand Summoner, was able to conjure vast territories such as mountains, islands, forests, plains, and swamps, using only cards he'd brought from Earth with him.
Demiplanes defy the normal laws of physics and nature, effectively being "something" created from "nothing." While all consume some degree of Mana to create or sustain, the amount consumed is dramatically less than the actual cost needed to produce such a thing, even within Gaea. Not to mention that many have vast reserves of Mana and natural resources in their own right, often with no concern for the natural processes needed to generate these things. Furthermore, they are only partially connected to conventional reality; they in no way impact the topography of the world itself, its mass, or the like unless wielded like some sort of blunt instrument against those things. They do not impact the gravity or behavior of the planet, in other words. Most can only be entered through specific gates or portals that must be approached under particular conditions or from specific directions, which can itself be extremely disorienting. One may, for example, be striding through a dense forest, only to see a vast lake with islands dotting it and mountains in the distance in a gap between the trees... only to step around that gap and find more forest. However, should one walk between that gap, the path might readily lead to that lake and those distant mountains, all of which are very real.
Demiplanes are inherently magical phenomena, but they generally cannot be banished, dispelled, or destroyed; once created, they permanently exist. Likewise their internal conditions, which are often set by their creators and have little or no connection to the behavior of conventional reality. However, while Demiplanes generally cannot be destroyed, they can be sealed off by closing the entryways to them through various means. Such portals are subject to magical disruption, making it one of the most effective means of contending with a wielder of a weaponized Demiplane.
Category:Magic
Category:Planes
Category:Demiplane
Category:Gaea
Category:Canon
Category:Cosmology