Dimensional Lock

You create a shimmering emerald barrier that completely blocks extradimensional travel. Forms of movement barred include: astral projection, dimension door, etherealness, gate, maze, plane shift, teleport, and similar spells or spell-like abilities. Once dimensional lock is in place, extradimensional travel into, or out of the area is not possible.

If the target is a point in space, the barrier is fixed in space, extending for a radius of 90 feet and cannot be moved without dispelling it. If the target is an object, such as Manacles then the barrier extends around the object exclusively, including any creatures making physical contact with the object, and moving with the object. Dimensional lock does not prevent affected creatures from moving through portals but does prevent portals from opening in its area of effect.

Dimensional lock does not interfere with the movement of creatures already in ethereal or astral form when the spell is cast, nor does it block extradimensional perception or attack forms. Also, the spell does not prevent summoned creatures from disappearing at the end of a summoning spell.

Casting this spell on the same spot every day for a year makes this effect permanent.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, you can increase the duration of the spell to 1 hour. When you cast this spell using a 9th level spell slot, you can increase the duration to 8 hours.