measured some with only area fails for layer

Prismatic Wall

Spells Player’s Handbook

. The wall consists of seven layers, each with a different color. When a creature reaches into or passes through the wall, it does so one layer at a time through all the layers. Each layer forces the

creature to make a Dexterity saving throw or be affected by that layer’s properties as described in the Prismatic Layers table. The wall, which has AC 10, can be destroyed one layer at a time

Hallow

Spells Player’s Handbook

You touch a point and infuse an area around it with holy or unholy power. The area can have a radius up to 60 feet, and the spell fails if the radius includes an area already under the effect of

Hallow. The affected area has the following effects. Hallowed Ward. Choose any of these creature types: Aberration, Celestial, Elemental, Fey, Fiend, or Undead. Creatures of the chosen types can’t

Blob of Annihilation

Monsters Monster Manual

Astral Implosion. If the blob is reduced to 0 Hit Points, it implodes and ejects any creatures and objects engulfed by it into the Astral Sea. The blob itself vanishes, leaving behind a layer of

Plane. Legendary Resistance (4/Day). If the blob fails a saving throw, it can choose to succeed instead. Magic Resistance. The blob has Advantage on saving throws against spells and other magical

Zone of Truth

Spells Player’s Handbook

You create a magical zone that guards against deception in a 15-foot-radius Sphere centered on a point within range. Until the spell ends, a creature that enters the spell’s area for the first

fails on this save. An affected creature is aware of the spell and can avoid answering questions to which it would normally respond with a lie. Such a creature can be evasive yet must be truthful.

Leomund's Tiny Hut

Spells Player’s Handbook

A 10-foot Emanation springs into existence around you and remains stationary for the duration. The spell fails when you cast it if the Emanation isn’t big enough to fully encapsulate all

creatures in its area. Creatures and objects within the Emanation when you cast the spell can move through it freely. All other creatures and objects are barred from passing through it. Spells of level 3

Dracolich (Gargantuan)

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the dracolich fails a saving throw, it can choose to succeed instead. Life Suppression. Creatures within 60 feet of the dracolich can’t

. The area within 1 mile of the lair is Lightly Obscured by pale fog. Whenever a creature other than the dracolich or one of its allies finishes a Long Rest in that area, it must succeed on a DC 15

Dracolich

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the dracolich fails a saving throw, it can choose to succeed instead. Life Suppression. Creatures within 60 feet of the dracolich can’t

. The area within 1 mile of the lair is Lightly Obscured by pale fog. Whenever a creature other than the dracolich or one of its allies finishes a Long Rest in that area, it must succeed on a DC 15

Tsunami

Spells Player’s Handbook

appears, each creature in its area makes a Strength saving throw, taking 6d10 Bludgeoning damage on a failed save or half as much damage on a successful one. At the start of each of your turns after

creature must succeed on a Strength (Athletics) check against your spell save DC to move at all. If it fails the check, it can’t move. A creature that moves out of the wall falls to the ground.

Tarrasque

Monsters Monster Manual

Legendary Resistance (6/Day). If the tarrasque fails a saving throw, it can choose to succeed instead. Magic Resistance. The tarrasque has Advantage on saving throws against spells and other magical

of this movement, the tarrasque creates an instantaneous shock wave in a 60-foot Emanation originating from itself. Creatures in that area lose Concentration and, if Medium or smaller, have the Prone

Beholder

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the beholder fails a saving throw, it can choose to succeed instead.Multiattack. The beholder uses Eye Rays three times. Bite. Melee Attack Roll

150-foot Cone. Until the start of the beholder’s next turn, that area acts as an Antimagic Field spell, and that area works against the beholder’s own Eye Rays.

Demilich

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the demilich fails a saving throw, it can choose to succeed instead. Undead Restoration. If the demilich is destroyed, it reforms and regains all

finishes a Long Rest outside that area. Travel Ward. Creatures can’t use teleportation or planar travel to enter or exit the lair. If the demilich dies or moves its lair elsewhere, these effects end immediately.Necrotic, Poison, PsychicBludgeoning, Piercing, Slashing

Demonomicon of Iggwilv

Magic Items Dungeon Master’s Guide

Fiend that you can see that is trapped within the area of a Magic Circle spell. The Fiend must succeed on a DC 20 Charisma saving throw with Disadvantage or become trapped within one of the Demonomicon

those hours pass, anyone who opens the book’s remaining binding is transported to a nascent layer of the Abyss that lies hidden within the book. At the heart of this deadly, semisentient domain

Death Tyrant

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the death tyrant fails a saving throw, it can choose to succeed instead.Multiattack. The death tyrant uses Eye Rays three times. Bite. Melee Attack

imperceptible, magical wave of negative energy in a 150-foot Cone. Creatures in that area can’t regain Hit Points until the start of the death tyrant’s next turn. An intact Humanoid corpse

Vampire Umbral Lord

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the vampire fails a saving throw, it can choose to succeed instead. Shadow Escape. If the vampire drops to 0 Hit Points outside its resting place

mile of the lair must succeed on a DC 15 Wisdom saving throw or gain no benefit from that rest. Mists. The area within 1 mile of the lair is Lightly Obscured by a persistent, creeping fog. The vampire

Spellfire Storm

Spells Forgotten Realms: Heroes of Faerûn

You conjure a pillar of spellfire in a 20-foot-radius, 20-foot-high Cylinder centered on a point within range. The area of the Cylinder is Bright Light, and each creature in it when it appears makes

a Constitution saving throw, taking 4d10 Radiant damage on a failed save or half as much damage on a successful one. A creature also makes this save when it enters the spell’s area for the first

Songal's Elemental Suffusion

Spells Forgotten Realms: Heroes of Faerûn

of elemental energy in a 15-foot Emanation originating from yourself. Each creature of your choice in that area makes a Dexterity saving throw. On a failed save, a creature takes 2d6 Acid, Cold, Fire

participates in the casting, you can choose one additional creature, to a maximum of nine additional creatures. The chosen creatures also gain the benefits of the spell for its duration. When the spell is cast, each secondary caster must expend a level 2+ spell slot; otherwise, the spell fails.

Nimblewright Steed