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Questions tagged [line-of-effect]

In D&D, a term describing a physically clear and unobstructed path between two points - typically the caster and what they want to aim at.

15
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3answers
1k views

What happens when you cast Fog Cloud behind a wall?

I'm puzzled by the "a clear path to the target" rule. To target something, you must have a clear path to it, so it can't be behind total cover. This seems straightforward: you can't target a ...
8
votes
1answer
323 views

Do Enchantment spells need line of effect?

A wizard casts Arcane Eye and sends it to another room to get vision of an enemy. The wizard then casts Crown of Madness on the enemy since he is in range. The Arcane Eye ends because he now ...
5
votes
1answer
251 views

Can the Minor Illusion spell be cast without line of sight?

Can minor illusion be cast without line of sight? For example, could you cast it behind a wall or through a closed door? Or do you need to see where it’s being manifested? I can't seem to find any ...
6
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2answers
167 views

Does Antimagic Field block line of effect for spells?

Consider a 100 foot long, 10 foot wide corridor. The middle 10 feet of the corridor are under the effects of Antimagic Field. A wizard at one end of the corridor wants to cast, say, Blindness/Deafness ...
4
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1answer
117 views

Can you use line-of-sight abilities (such as shadow jaunt) if you have blind sight to a location?

Scenario is: your character is blind, but has blind sight. Can this character use blind sight to shadow jaunt to a location within his range of sight (LOS) (usually 60 ft) or does this not apply? ...
5
votes
1answer
1k views

Under what circumstances does an antimagic field suppress the casting of a spell?

The antimagic field spell says that "within the sphere, spells can't be cast", and spells out some more of the specific effects of this: Targeted Effects. Spells and other magical effects, such as ...
7
votes
2answers
830 views

Could a Warlock with Ghostly Gaze and Sacred Flame attack through a wall? [duplicate]

The Eldritch Invocation Ghostly Gaze allows the Warlock to see through solid objects out to 30' for as long as she concentrates (up to 1 minute). For our scenario, our Warlock's nemesis has managed ...
18
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4answers
2k views

Do auras require line of effect?

Several in-game effects, such as all the paladin's auras (PHB p. 85) and spells like Aura of Life and Aura of Purity (PHB p. 216), are passive auras that radiate from the point of origin (usually a ...
2
votes
4answers
960 views

Can I use Arcane Eye to cast a Fireball past a solid wall?

One of my players is interested in using Arcane Eye and Fireball in conjunction. From looking at this thread here: Area spells and line of sight, it seems that if a player cannot SEE the target, then ...
0
votes
1answer
68 views

Does Crawling Eye grant line-of-effect across Impenetrable Barrier?

I was trying to think of really fun, evil things to do with a warlock. I was curious if this works: Use Crawling Eye Use Impenetrable Barrier between you and the eye Do horrible things to opponents ...
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0answers
86 views

Can single target spells be blocked by friendly characters? (IE Provide cover to the target) [duplicate]

Been utilizing the knowledge on these forums for a long time, but rarely post. Hope this isn't repetitive, as I've seen many posts to be similar. I understand burning hands and fireballs will hit ...
6
votes
2answers
2k views

Does Lightning Bolt affect everyone in its line of effect?

I'm looking for clarification on a spell effect. The specific spell in question is lightning bolt, 3rd-level Sorcerer/Wizard spell. It has an area of a 120-ft line. Does it pass through enemies? If I ...
10
votes
2answers
4k views

What is the difference between line of sight and line of effect?

As the title. I've seen many definitions such as concealment refer to one or both, but I can't find a clear definition of them or how they are different.
37
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6answers
22k views

Can spells be cast through a Wall of Force?

The spell description of wall of force is silent on the question of whether spell effects can pass through the wall. The semi-relevant part of the description states: Nothing can physically pass ...
4
votes
2answers
199 views

How do zones and line of effect work, and are they adjusted if the zone follows the player (kinda like an aura, but defined as a zone)?

So lets say your situation is like so: ..... .XXX. CXB.. .XXX. ..... Where C is the caster, and B is blocking terrain, and the x's are the squares affected by a ...
12
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1answer
5k views

Consequences of Blindness on casting spells?

Which types of spells can a Blinded caster still target as accurately as usual? Which ones require extra steps or give penalties because of blindness? Which ones can simply not be targeted at all, ...
9
votes
1answer
443 views

Do burst/close burst attacks “splash” around corners?

I know that blasts require LoS in 4e and that bursts require line of effect between the target square and the creature using the power but one my players asked if a burst would hit diagonally around a ...
9
votes
2answers
235 views

What do characters know about the battlefield?

The PCs generally know where all enemies are and vice versa (except those who are Hidden). They also know the effects of all zones and other buffs that are in effect. This is part of the "all the ...
11
votes
2answers
277 views

What effects can hit a phasing creature in a nonmagical wall square?

In a recent battle I was Dming, the party was fighting against Wraiths (in the Madness at Gardmore Abbey adventure). Wraiths have phasing and thus can fly into and through walls, so the players and I ...
7
votes
1answer
723 views

Taking into account line-of-sight & blast rules, how would a blast work with a wall between you and an enemy?

If you take into effect the blast rules and the line-of-sight rules, how should we play the blast? Would it wrap the nine squares in front of him, including the wall? Would it go the nine diagonal ...
7
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2answers
440 views

Can a Leader's Burst Healing work if there is a blocking wall?

Most of the Leader's in 4th edition have a close burst 5 Healing power. If the target of the Healing power is completely blocked by a wall from the Leader, can ...
4
votes
1answer
587 views

Do enemies block line of effect?

This may seem like a no-brainer, but the non-errata-ed rules in the PHB aren't entirely clear on this point, that I can recall. So if an enemy is in directly in front of where your wizard wants to ...
10
votes
2answers
458 views

Does ranged magic that requires line-of-sight also require line-of-effect?

This came up during a combat last week. The party had barricaded themselves behind double doors and the wizard was peering through the keyholes, dropping Scorching Bursts on anything foolish enough ...