57
votes
Accepted
Do you have to see the person, the armor, or the metal when casting heat metal?
Rules-as-written, you must be able to see the target of heat metal.
Heat metal says:
Choose a manufactured metal object, such as a metal weapon or a suit of heavy or medium metal armor, that you can ...
- 154k
42
votes
When you cast invisibility on your turn, and walk away from 2 enemies, do they get an attack of opportunity?
No, they don't get opportunity attacks.
From PHB, page 195:
You can make an opportunity attack when a hostile creature that you can see moves out of your reach.
- 57.2k
40
votes
Accepted
Does a character have line of sight on enemies directly behind them?
The rules assume that facing direction doesn't matter.
Therefore they routinely use "creature you can see" to mean "creature you could see, if you were to look in that direction". For example, ...
- 22.4k
38
votes
Casting wall of fire in a T-shaped corridor
You do not need line of sight at all
Spells will tell you the requirements to cast them. All spells require (unless indicated otherwise), a clear path to the target, but line of sight is not a general ...
- 95.6k
24
votes
Accepted
Do features that let you see things within your "line of sight" let you see invisible creatures and objects?
If your reading of a feature called See Invisibility is that you cannot see invisibility, your reading is incorrect.
It's quite simple, really. The intended function of these features is so abundantly ...
- 154k
21
votes
Accepted
Does the Wall of Ice block line of sight?
It is up to the DM.
Compare the description of other "Wall of ..." spells.
Wall of Fire's description says:
[...] The wall is opaque and lasts for the duration.
Wall of Force's description ...
- 32.8k
20
votes
Does Devil's Sight enable one to see into Hunger of Hadar?
Based on updated Sage Advice, Hunger of Hadar blinds creatures inside the spell, but does not block the simple darkvision of those outside it. Devil's Sight isn't required.
A character with devil's ...
- 6,617
18
votes
Do features that let you see things within your "line of sight" let you see invisible creatures and objects?
The SAC gives a clear answer
Speaking of “line of sight,” the game uses the English meaning of the term, which has no special meaning in the rules.
And so, the meaning of "line of sight" ...
- 76.8k
17
votes
Accepted
How does line of sight for spells work, accounting for familiars?
You cannot cast the spell because spells require a clear path to their target
The counterspell spell requires us to see the target as it states:
1 reaction which you take when you see a creature ...
- 76.8k
16
votes
Can you target someone with a "that you can see" spell if you can only see a hand or a foot?
Total cover blocks spells and attacks
PHB 196:
A target with three-quarters cover has a +5 bonus to AC and Dexterity saving throws. A target has three-quarters cover if about three-quarters of it is ...
- 826
16
votes
Does a huge invisible creature grant invisibility to the target behind it, blocking the line of sight of the target in front of it?
The Invisible condition applies only to the invisible creature itself.
The rules language in the Invisible condition (and similarly the Invisibility spell) indicate that only the invisible creature ...
- 1,288
15
votes
Accepted
What happens if you're frightened of a hidden or invisible creature?
If source of fear is invisible, frightened creatures aren't affected by disadvantage.
A line of sight is the direct path between a viewer and viewable object [1,2,3]. Without an object to view, such ...
- 34.5k
15
votes
Accepted
Does the fact Spirit Guardians has range self, affect whether the area of effect goes around corners?
Areas of effect only go around corners if the description says so.
For example, take fireball. The area of effect of fireball spreads around corners because the spell description of fireball says:
...
- 154k
14
votes
Accepted
For the frightened condition, do transparent objects block line of sight?
Line of Sight:
To precisely determine whether there is line of sight between two spaces, pick a corner of one space and trace an imaginary line from that corner to any part of another space. If at ...
- 9,590
14
votes
What happens when a Slowed character casts a spell on a target that moves out of sight?
Wanda is a valid target, only the effect is delayed
William has a clear path to Wanda, so they are a valid target for spells. Wanda is within sight so they are a valid target for Acid Splash.
...
- 22.1k
13
votes
Accepted
Can I use the Guiding Bolt spell to attack a creature that burrowed underground where I can't see them?
This does not work: the target has total cover.
The rules for Total Cover state:
A target with total cover can't be targeted directly by an attack or a spell, although some spells can reach such a ...
- 154k
12
votes
How does a shadow monk teleport into magical darkness if they don't have line of sight to a square inside of it?
The ability requires you to see an unoccupied space, but not through that space. You can teleport to any unoccupied space on the edge of the darkness spell effect because you can see the space of ...
- 27.8k
12
votes
Accepted
Does a touch-range spell cast using Find Familiar have to have line of sight from the caster?
Line of sight is irrelevant. Spells only require a line of effect unless otherwise stated.
As you quoted, the familiar can only deliver touch spells. Thus, the familiar must touch the target. So, in ...
- 9,590
12
votes
Accepted
Can the Minor Illusion spell be cast without line of sight?
You don't have to see the target but you must have a clear path to it
If a spell requires that you must be able to see the target to cast it, it says so. Minor illusion does not say so:
You create a ...
- 95.6k
12
votes
Accepted
Line of sight, parallel 5ft obstacle between player and enemy
Line of Sight is not the same as Cover and whether or not there is Line of Sight depends on the specifics of what the object is.
Squares on a grid are not a measure of the size of a creature, they are ...
- 28.5k
12
votes
Do you have to see the person, the armor, or the metal when casting heat metal?
The target of heat metal must be visible
The spell states (emphasis mine):
[...] Choose a manufactured metal object, such as a metal weapon or a suit of heavy or medium metal armor, that you can see ...
- 76.8k
12
votes
Accepted
Can a creature see through a Wall of Force if See Invisibility is cast on them?
I have seen this heavily debated in the past.
The general consesus is usually, that it depends on the DM.
As for line of sight rules about "Wall of force", you might want to take a look at ...
- 144
11
votes
Accepted
Does Mage Hand require line of sight to summon?
It doesn't require line of sight but it does require a clear path to the target
As a spell, Mage Hand must follow the general rules for spellcasting including:
A Clear Path to the Target
To target ...
- 216k
11
votes
Does a huge invisible creature grant invisibility to the target behind it, blocking the line of sight of the target in front of it?
Invisibility only makes the creature itself invisible
Think about it, if you could not see what is behind the invisible creature, it would not be invisible, would it?
The invisible condition states:
...
- 135k
10
votes
Casting wall of fire in a T-shaped corridor
Yes you can do this
The description for Wall of fire only lists a range and makes no mention of a line of sight requirement:
... RANGE/AREA 120 ft ...
You create a wall of fire on a solid surface ...
- 8,448
10
votes
Accepted
How do targeting and line of sight for spells work in regards to allies?
It works the same way for foes and allies
Regarding to line of sight, being an ally or an enemy is irrelevant.
Any creature between you and your target:
Gives half cover to the target
Does not ...
- 70.8k
10
votes
Accepted
What happens when a Slowed character casts a spell on a target that moves out of sight?
To start with, I'll point out that this scenario is extremely similar to a mage having readied a spell, and then releasing it on the next turn. In both cases, the casting occurs during the first turn, ...
- 1,177
10
votes
Accepted
Does an out-of-sight creature affected by the Fear spell have to keep running if they fail the saving throw?
Yes.
First, the end condition of the fear spell (PHB, pg. 239):
If the creature ends its turn in a location where it doesn't have line of sight to you, the creature can make a Wisdom saving throw. On ...
- 154k
10
votes
Accepted
Cast shatter on the other side of a wall
No, you cannot.
Page 204 PHB: A CLEAR PATH TO THE TARGET
To target something, you must have a clear path to it,
so it can't be behind total cover.
If you place an area of effect at a point that you ...
- 1,414
10
votes
Accepted
In Lancer, what are valid targets for weapons that do not require line of sight?
You know where non-hidden enemies in Sensors range are.
The description of Sensors in the Core Book states (p. 34; emphasis mine):
SENSORS: Your mech’s SENSORS is the maximum distance (in spaces) ...
- 50.3k
Only top scored, non community-wiki answers of a minimum length are eligible