Surelock

You create a ward against planar travel that protects a 60 foot radius to a height of 30 feet. For the duration all gates and portals that reach into other planes, such as those created by the gate spell, are immediately sealed. The spell proofs the area against planar travel, and therefore prevents creatures from accessing or leaving the area by way of the Astral Plane, Ethereal Plane, Feywild, Shadowfell, or the plane shift spell.

This spell does not affect spells that affect movement/summons from within the current plane, so spells such as dimension door are not affected.

Any attempt to summon or shift a creature outside of the current plane (such as via the banishment spell) automatically fails, and the spell slot is lost.