Casting Time: 10 Minutes
Range/Area: Touch(40,000 ft 2)
Components: V, S, M *
Duration: 1 Day
You can create the ward which is against to the magical travel which protects almost up to 40,000 square feet of floor space to the height of 30 feet above the floor. For a particular duration. the creatures can not be teleport into an area or else use the portals, such as those who has been created by the gate spell, in order to enter the area. Do you know how does blink work 5e.
The spell may proofs the area which is against to the planar travel and even therefore it prevents the creatures from accessing an area by way of the Astral Plane, Ethereal Plane, Feywild, Shadowfell, or the plane shift spell.
In an addition, the spell will get the damages types of creature which you shall select whenever you cast it. Even though you can easily select one or more of the following: celestials, elementals, fey, fiends, and undead. Check this article on how do you stop a creature from teleporting in 5e?.
Whenever the selected creature enters a spell’s area for the first time on a particular turn or even starts its turn there, the creature may takes 5d10 radiant or necrotic damage (your choice when you cast this spell).
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Whenever you cast this spell, you could designate a password. A creature which speaks password like it enters an area shall take no damage from a spell.
However the spell’s area can not be overlap with an area of another forbiddance spell. Suppose, if you cast the forbiddance for almost every day for the 30 days within a same location, the spell shall last until it has been dispelled, and even the material components are consumed on its last casting. Also read this what is a shapechange 5e?.