Rirvic's Final Boundary

You designate a fixed area up to 1 mile in radius, centered on yourself. Over the course of the casting, a rising hum fills the area as geometric sigils blaze into being, floating in the air like glowing scaffolding. At the moment of completion, every creature, object, and structure within the area—including the terrain itself down to 100 feet deep—is forcefully ejected from its native plane and transported to a harmless demiplane. An unwilling creature can attempt a Charisma saving throw, remaining where it was on a failure, though will fall if the ground under it has been transported.   This spell does not distinguish friend from foe, though you may distinguish any number of creatures by name during the casting which will remain behind even if they were willing.   Within the demiplane, time flows normally, but teleportation, planar travel, and summoning effects fail unless the caster of this spell opens a path. The demiplane cannot be access through spells lower than 9th level unless keyed by the caster to be allowed. The caster can choose to create artificial sunlight or moonlight in this demiplane, and evaporated water will return back down as rain as normal.   Casting this spell while within the demiplane will reverse its effects, sending everything within the demiplane back to its native plane where it disappeared from. If the space that would be filled by the structure returning is occupied, the matter occupying the space is shunted into the Ethereal Plane.