Questions tagged [area-of-effect]

For questions which ask primarily about effects that affect a large zone or have multiple targets.

Filter by
Sorted by
Tagged with
0
votes
0answers
116 views

Hunger of Hadar cast by two warlocks double the effects? [closed]

Hunger of Hadar reads: "The Void creates a warp in the fabric of space, and the area is difficult terrain. Any creature that starts its turn in the area takes 2d6 cold damage. Any creature that ends ...
20
votes
1answer
2k views

Does the spell “Silence” affect the caster?

While I was DMing a 5th Edition game, one of my player's sorcerers cast the spell Silence while they were 5 feet away from an enemy caster. They centered the spell on the space that the enemy caster ...
4
votes
2answers
227 views

When playing on a grid, how many Medium creatures fit inside the area of a Scroll of Protection's barrier during combat?

The description of the scroll of protection (DMG, p. 199) reads: Using an action to read the scroll encloses you in a invisible barrier that extends from you to form a 5-foot-radius, 10-foot-high ...
7
votes
1answer
133 views

What happens after a creature of the chosen type penetrates my Magic Circle?

The Magic Circle spell description says: The creature can't willingly enter the cylinder by nonmagical means. If the creature tries to use teleportation or interplanar travel to do so, it ...
2
votes
0answers
90 views

Can Ice Knife hit a target under the effect of Mirror Image and destroy its illusions? [duplicate]

In this question it was explained that the blast of the knife reaches a 2x2 area. As the description of the spell Mirror Image makes mention of 4 targets next to each other, could it hit the actual ...
12
votes
2answers
269 views

Does the Distant Spell metamagic apply to the Sword Burst cantrip?

If this has been asked, I could not find it. My Sorcerer has the sword burst cantrip, and I'm thinking of taking the 'Distant Spell' metamagic option. Will it change the range to 10 feet? Similar to ...
5
votes
3answers
277 views

Does allowing the Thunderwave spell to be centred-on but not affecting the caster increase its power level?

The thunderwave spell has the description: A wave of thunderous force sweeps out from you. Each creature in a 15-foot cube originating from you must make a Constitution saving throw. On a failed ...
12
votes
1answer
305 views

Are gibbering mouthers immune to each other's area effects?

Gibbering Mouthers have two area-of-effect abilities: Aberrant Ground. The ground in a 10-foot radius around the mouther is doughlike difficult terrain. Each creature that starts its turn in that ...
9
votes
1answer
630 views

Does the Thunderwave spell push back a Cloud of Daggers?

If there is an active Cloud of Daggers spell within the AOE of a Thunderwave spell, would the Cloud of Daggers spell be pushed back 10 feet? From the description of Thunderwave: In addition, ...
2
votes
1answer
88 views

What can modify the area or shape of a Wall of X spell?

Summarizing the question into parts here. I am looking for abilities that do one of the following regarding walls. Increasing the size of the wall Changing the shape of a wall Allow for the moving of ...
10
votes
2answers
663 views

How large is a Globe of Invulnerability cast by a Large creature?

The Globe of Invulnerability spell describes its area of effect like so: An immobile, faintly shimmering barrier springs into existence in a 10-foot radius around you and remains for the duration. ...
7
votes
2answers
549 views

Can an Area of Effect spell cast outside a Prismatic Wall extend inside it?

The Indigo layer of a Prismatic Wall states: While this layer is in place, spells can't be cast through the wall By comparison, a Globe of Invulnerability states: Any spell of 5th level or ...
11
votes
3answers
1k views

Where does the “burst of radiance” from Holy Weapon originate?

The spell Holy Weapon empower a "weapon you touch" to do extra damage (2d8 radaint per hit) and shed light (30 feet bright light, 30 feet dim light). It has one final feature (XGtE, p. 157, bold added)...
8
votes
1answer
616 views

Does the radius of the Spirit Guardians spell depend on the size of the caster?

The spirit guardians spell description states: Spirits float around you up to 15 feet away. Certain other spells like antilife shell state: A barrier extends from you in a 10-foot radius and ...
11
votes
2answers
206 views

Does the Maddening Darkness spell affect creatures in its radius if they have 9th-level magical light illuminating it?

The description of the maddening darkness spell (XGtE, p. 160) says [emphasis mine]: Magical darkness spreads from a point you choose within range to fill a 60 foot-radius sphere until the spell ...
7
votes
2answers
418 views

Is there a difference between cube areas-of-effect with Self or 5-feet ranges?

To cast cube-shaped spells, You select a cube's point of origin, which lies anywhere on a face of the cubic effect. After looking through a multitude of other questions regarding Thunderwave (see ...
13
votes
6answers
2k views

Can I cast Thunderwave and be at the center of its bottom face, but not be affected by it?

Questions like this and this show that you cast Thunderwave as a cube, and you (the point of origin) stand at one of the cube's faces. From the PHB (emphasis mine): You select a cube's point of ...
31
votes
3answers
2k views

Can I create an upright 7-foot × 5-foot wall with the Minor Illusion spell?

The Minor Illusion spell description states: If you create an image of an object—such as a chair, muddy footprints, or a small chest—it must be no larger than a 5-foot cube. The image can’t create ...
2
votes
2answers
86 views

When you cast a spell with “effect” entry, do you have to have line of effect to every portion of the effect to be created?

When you cast a spell with “effect” entry, do you have to have line of effect to every portion of the effect to be created? Some examples of where it can be relevant: Casting Summon Monster to ...
3
votes
1answer
191 views

Do light and darkness from spells turn around corners?

Does light or darkness radiated from objects targeted by spells such as Light, Darkness, Daylight and similar turn around corners (act like spread-like emanation)? Or do obstacles block such effects, ...
6
votes
1answer
472 views

What does “centered on yourself” mean in the Wild Magic Surge table?

There are many results on the Wild Magic sorcerer's Wild Magic Surge table (PHB, p. 103) that says "centered on yourself". For instance: 07–08: You cast fireball as a 3rd-level spell centered on ...
1
vote
2answers
601 views

Does cover help against spells/effects that spread around corners (like fireball)?

The rules for cover state that half and 3/4 cover grant a bonus to both AC and (importantly for this question) Dexterity saving throws. However, some spells, like fireball, state that the area of ...
33
votes
3answers
3k views

Casting wall of fire in a T-shaped corridor

In D&D 5e, is casting wall of fire like this allowed, or would I need to have line of sight for the entire corridor? Assume my wizard knows that the corridor extends both ways and how long it is.
5
votes
1answer
338 views

Can I choose to cast a spell with a reduced area of effect?

I have little understanding of the rules and systems of 5th Edition, as I have never played myself. Are you able to cast area-of-effect spells such as silence or darkness on a smaller (or ...
12
votes
3answers
646 views

What happens when the Cloudkill spell runs into a wall?

Cloudkill has an interesting property where the area of effect moves on its own. The spell states: The fog moves 10 feet away from you at the start of each of your turns, rolling along the surface ...
5
votes
2answers
166 views

How does the Banishment spell interact with other spells that trigger when entering a space?

I had a game where I had a Paladin and two Warlocks. Paladin and Warlock A casted two spells (Moonbeam, and Toxic Cloud) that both trigger when a creature enters or starts their turn in the area of ...
6
votes
1answer
603 views

How does the Prismatic Wall spell handle an AOE?

Would the indigo layer of a prismatic wall spell (in a spherical shape) block the effect of a fireball, if it had radius bigger than the radius of the wall, cast outside the wall but centered/targeted ...
0
votes
2answers
884 views

Does the Spell Sniper feat affect the size of a spell's area of effect?

Would the Spell Sniper feat affect the width of the lightning bolt spell, which is normally 100 feet long and 5 feet wide? Would it also increase the explosion range of fireball and such spells?
6
votes
1answer
309 views

What exactly happens when I cast Web in midair?

The web spell is a bit special, in that it initially fills a 20-foot cube, but can collapse and/or disappear if the chosen placement does not provide sufficient anchorage: You conjure a mass of ...
8
votes
1answer
775 views

What happens if a delayed blast fireball detonates inside an antimagic field?

Say a wizard casts a delayed blast fireball and leaves it to charge up instead of detonating it immediately. Another wizard casts antimagic field and moves so that the fireball bead is inside of the ...
8
votes
1answer
823 views

Can you cast the Conjure Elemental spell to summon an elemental within the area of effect of the Forbiddance spell?

The forbiddance spell description states: You create a ward against magical travel that protects up to 40,000 square feet of floor space to a height of 30 feet above the floor. For the duration, ...
32
votes
3answers
1k views

How big is the area of the web spell created by a Cloak of Arachnida?

A Cloak of Arachnida allows the wearer to cast the web spell, with the additional property: the web created by the spell fills twice its normal area. The area of an ordinary web spell is a 20-...
4
votes
3answers
411 views

Do areas of effect affect creatures in three dimensions or in a plane?

A recent session saw us—the PCs—encounter a gate made of magical fire. The wall surrounding the gate was 30 ft. tall. When the Oath of the Crown paladin and I were on one side of the gate, the ...
9
votes
1answer
1k views

How can I increase the range of a Dragonborn's breath weapon?

Is it possible to increase the range/area of a Dragonborn's breath weapon? If yes, how?
4
votes
1answer
219 views

What is the Massacre spell's area of effect?

Under the description of the massacre spell's effect, the area is stated to be a "60-ft. line"; however, under the spell description, it says: You unleash a wave of necromantic energy that snuffs ...
13
votes
2answers
572 views

Could a Huge or bigger creature (bigger than a 10-foot-radius sphere) use Antimagic Field?

Could a Huge or bigger creature use antimagic field? The antimagic field spell description says: Range: Self (10-foot radius sphere) A 10-foot-radius invisible sphere of antimagic surrounds ...
2
votes
2answers
450 views

How do you determine the area of effect of a flying dragon’s breath weapon? [closed]

When a dragon is flying over its target, how do you determine the area of effect on the ground? If it is breathing straight down, a 60' cone could create a 60' diameter circle, but that's not very ...
7
votes
2answers
2k views

Can I cast Hallow on a ship?

This came up recently in a session: Our cleric thought it would be a great idea if he made our airship hallowed. The description of the hallow spell says: You touch a point and infuse an area ...
12
votes
1answer
543 views

Does a persistent spell effect cast on a moving platform move with the platform, or is it fixed in space?

Does casting a persistent spell effect on a moving platform fix the spell's orientation to the platform, or is its orientation absolute to the world around it? Quick backstory: I have a pirate bard ...
1
vote
1answer
333 views

If a spell is cast on a moveable creature/object and lasts longer than a round, and the creature/object moves, does the spell move with it?

Recently it has come up at our table on the topic of centering a spell with an extended length, like sickening radiance, on a creature or something else that move. My table & I are unfamiliar with ...
1
vote
1answer
863 views

How to measure on a grid the area of a sphere area spell or effect centered on a creature?

Per the Wild Magic sorcerer's Wild Magic Surge table (PHB, p. 104) 07-08: You cast fireball as a 3rd-level spell centered on yourself. There's other questionable area spells in that list (grease ...
14
votes
6answers
4k views

Is Burning Hands’ area of effect a “thin sheet of flame” or is it a cone?

Burning hands says two things about the shape of the spell’s area of effect (PHB, p. 220): a thin sheet of flames shoots forth from your outstretched fingertips Each creature in a 15-foot cone [...
3
votes
0answers
37 views

What is the affected space for the area of Burning Hands? [duplicate]

Burning hands states: As you hold your hands with thumbs touching and fingers spread, a thin sheet of flames shoots forth from your outstretched fingertips. However, it goes on to affect a cone ...
10
votes
3answers
2k views

How to resolve Burning Hands with a Dying Ally

Playing the D&D 5e starter set, the rogue had been knocked prone by the wolves in the Goblin Cave and had two wolves within melee range over her 0hp body. I ruled that, as she was prone, the ...
10
votes
1answer
1k views

Does a Hallowed area stop Spiritual Guardians from appearing?

Reading up on 5th Edition spells I came across the 5th Level Evocation Hallow: You touch a point and infuse an area around it with holy (or unholy) power...The affected area is subject to the ...
2
votes
1answer
157 views

Do spells that have range originating from the caster start in a grid intersection or the center of his square? [duplicate]

The rules say: The point of origin of a spell is always a grid intersection. PHB, p.175 Fireburst, for example, "extends" 10 feet radius around the caster. But if you count from a grid ...
3
votes
1answer
289 views

Is there a means by which to “shape” a spell?

Is there a way to shape a spell to, for instance, strike a single point so a fireball can be used as a sort of shaped explosive? Sculpt Spell has a series of shapes you're limited to and does not ...
5
votes
2answers
395 views

What is the actual area of Emergency Force Sphere?

I have seen a few discussions about the area of effect of an Emergency Force Sphere: Effect 5-ft.-radius hemisphere of force centered on you The arguments are that you must pick a grid ...
7
votes
2answers
161 views

Does a magic circle protect a creature partially inside the area of effect?

If a creature is partially inside a magic circle against evil's area of effect when it is cast or is simply too big to fit inside the zone, does the protection work?
14
votes
3answers
2k views

How do I target the Moonbeam spell, using a grid?

So, as my title implies; If you shoot a Moonbeam at an enemy standing in a square, would the area covered by the Moonbeam be just that single square, from one of the corners 2x2 or mid-square 3x3 ...