Can you cast a wall of force inside an AMF?


Rules Questions


Question is as topic title.

Antimagic Field says that it does not affect wall of force, prismatic sphere, etc.

The two sides of the argument are as follows.

1. The spell says it cannot affect them. Ergo, you can cast a wall of force into an antimagic field.

2. The spell suppresses spellcasting. Ergo, while casting antimagic field cannot affect an existing wall of force in its area, it still suppresses the casting of wall of force into or inside of the antimagic field.


I would rule that casting while you are inside one is a no go. Casting into one should be fine though since its not effected by the anti-magic.


You know, I really wanted to say the second interpretation, but after reading over AMF, I have to say that by the RAW I believe it's the first.

As per

Paizo wrote:

The space within this barrier is impervious to most magical effects, including spells, spell-like abilities, and supernatural abilities. Likewise, it prevents the functioning of any magic items or spells within its confines.

-snip

Two or more antimagic fields sharing any of the same space have no effect on each other. Certain spells, such as wall of force, prismatic sphere, and prismatic wall, remain unaffected by antimagic field. Artifacts and deities are unaffected by mortal magic such as this.

It doesn't actually state in any other location than the emphasized line that spellcasting is inhibited, and the inhibition is linked to the same clause that cancels out existing spells.

The same clause that the listed force spells are exempt from.


I'm not sure if you can cast one into it, but I'm fairly certain you couldn't cast it while inside of the AMF. To me, that's usually the important part.

The Exchange Owner - D20 Hobbies

My interpretation of the RAW:

a) You can't cast Wall of Force while inside an AMF.

b) You can't cast Wall of Force outside an AMF and effect an area inside the AMF.

c) Should you cast AMF in an area that contains a Wall of Force, Prismatic Sphere, or Prismatic Wall then those spells are unaffected by the AMF.


James Risner wrote:

My interpretation of the RAW:

a) You can't cast Wall of Force while inside an AMF.

That's actually explicitly wrong. You can cast Wall of Force, or any spell, while inside an AMF.

The mechanism by which AMF operates is not by preventing spellcasting, it is by suppressing spells.

Antimagic Field wrote:
An antimagic field suppresses any spell or magical effect used within, brought into, or cast into the area, but does not dispel it. Time spent within an antimagic field counts against the suppressed spell's duration.

So you cast any spell within an AMF, the spell happens, it is cast, its duration starts ticking. But AMF suppresses it and so there is no actual effect.

Wall of Force is explicitly immune to this suppression.

Thus - you can cast Wall of Force, like any other spell, within an AMF. Unlike any other spell, Wall of Force's effect will not be suppressed by the AMF, so you'll get an actual wall out of your casting when you do so.

AMF is an often misunderstood spell, and the line I quote is a big part of that misunderstanding. It doesn't do what most people assume it does, which is dispel/destroy/negate any spell cast within. It just prevents spells cast within from having their effect until the antimagic field goes away.

Unless the spell is one of the small handful that are immune to AMF.

The Exchange Owner - D20 Hobbies

Coriat wrote:
James Risner wrote:
a) You can't cast Wall of Force while inside an AMF.
That's actually explicitly wrong. You can cast Wall of Force, or any spell, while inside an AMF.

The spell doesn't cover casting spells originating from inside the AMF.

Grand Lodge

Coriat wrote:
Antimagic Field wrote:
An antimagic field suppresses any spell or magical effect used within, brought into, or cast into the area, but does not dispel it. Time spent within an antimagic field counts against the suppressed spell's duration.
So you cast any spell within an AMF, the spell happens, it is cast, its duration starts ticking.

I'm not sure how you translate 'cast into' into 'cast within'. I'm pretty sure there is nothing that says you can cast a spell within the AMF.


TriOmegaZero wrote:
Coriat wrote:
Antimagic Field wrote:
An antimagic field suppresses any spell or magical effect used within, brought into, or cast into the area, but does not dispel it. Time spent within an antimagic field counts against the suppressed spell's duration.
So you cast any spell within an AMF, the spell happens, it is cast, its duration starts ticking.
I'm not sure how you translate 'cast into' into 'cast within'. I'm pretty sure there is nothing that says you can cast a spell within the AMF.

I am pretty sure he was focusing on the words "used within" which does support the interpretation that using spells is not disallowed, they are just suppressed. So spell that aren't suppressed work.

Grand Lodge

Create Mr. Pitt wrote:
I am pretty sure he was focusing on the words "used within" which does support the interpretation that using spells is not disallowed, they are just suppressed. So spell that aren't suppressed work.

I see. On further review, that does seem to be what the rules say, especially considering the wording here.


I see nothing in the text that would prevent the casting of spells in the anti-magic field.

Whether or not they will be suppressed is addressed as a separate concern.

Wall of Force works in anti-magic, so Wall of Force can be cast inside of it.

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