Estate Transference

This powerful spell allows a caster to transfer a large area of land from the Material Plane to any of the Inner Planes. All buildings, people, and wildlife within the area of effect are also transported. The land forms a pocket of the Material Plane within the Inner Plane. The pocket is a sphere with a diameter equal to the diameter of the land removed from the Material Plane. The surface of the pocket allows creatures to enter or exit the pocket, but it prevents the elements Of the Inner Plane from entering the pocket. Inside the pocket, the land is surrounded by air of a temperature matching that of the Material Plane at the moment the land was moved. In addition, a spring-like source of water from the land is created within the pocket, it's location at the discretion of the caster.

Before the spell is cast, the area to be moved must be surrounded by stones with no more than 5 feet between each stone. Each stone is inscribed with a rune of the desired element that corresponds to the Inner Plane the land is being moved to; it must then be partially buried so that the rune is above ground and facing upward. During the casting of the spell, some form of corresponding element must be placed on each of the runestones. Thus, if a wizard wants to move their castle to the Elemental Plane of Fire, they must first surround the area with stones containing the mark of the element of fire, and then they must ignite a flame on each of the runestones. The presence of the element will be preserved for the duration of the casting time; water will not evaporate, fire will not burn out, earth will not blow away, and air, in a small sphere directly above the rune, can’t be removed under most circumstances.

The wizard must be at the center of the area to be moved when they cast the spell, and it affects a spherical volume of 100 feet in radius. When the land moves, a hemispherical crater is left behind in the Material Plane. Inside its pocket on the desired elemental plane, the land continues its existence as if nothing changed, with the exception of occasional visits from planar creatures. Any land that is moved in this manner can never again be moved with this spell.

The material component (in addition to the runestones) is the appropriate magical device to control elementals of the desired plane (bowl of commanding water elementals, brazier of commanding fire elementals, censer of controlling air elementals, or stone of controlling earth elementals). The device must be permanently placed at the heart of the area of effect and cannot be used for any other purpose. The runestones are only required for the casting of the spell, but if the elemental control device is disturbed in any way the spell immediately fails, allowing the energies of the elemental plane to flood into the protected area.