Wall of Force - Why the odd restrictions?


Rules Questions

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And, am I really reading this right?

[url="http://www.d20pfsrd.com/magic/all-spells---final/wall-of-force" wrote:
D20PFSRD.com[/url]]The caster can form the wall into a flat, vertical plane whose area is up to one 10-foot square per level. The wall must be continuous and unbroken when formed.

1) Vertical is up/down yes? So the wall next to me could be considered a vertical plane. The wall of force is then anchored to this and comes out sideways?

2) Area is up to 1 10ft sq per level = 100sqft/level So 1 inch wide and 1200ft heigh? (or for simpler maths, 1ft wide and 100ft heigh)

Assuming those are correct....Why?

I want to re-create this scene, I obviously can't with wall of force. Is there a spell with which I can?


The wall is a flat, vertical plane. It doesn't have to be anchored to anything. You can make it in the middle of the air if you want.

As for the "area is up to one 10 foot square per level", that's an unfortunate wording that really should be fixed. It doesn't entirely fill a 10' square per level; instead, you have one 10'x10'x(infinitesimally small depth) segment of wall per level. You don't have to use the entire area of the spell; you can make a wall of force that's 5'x5'x0.0001" if you want.


Well, since there's not a wall of force anywhere in that scene, I guess you'll just have to paint it on your own wall of force. :)

J/K...

The dimensions of the wall of force are maximums only. You can still make it smaller, anchored to the ground in front of you, and that will block a dragon's breath as in the picture.

Dark Archive

Zurai wrote:
The wall is a flat, vertical plane. It doesn't have to be anchored to anything. You can make it in the middle of the air if you want.

Ahhh, I read "onto", not "into"....That does explain a lot ;)

Zurai wrote:
As for the "area is up to one 10 foot square per level", that's an unfortunate wording that really should be fixed. It doesn't entirely fill a 10' square per level; instead, you have one 10'x10'x(infinitesimally small depth) segment of wall per level. You don't have to use the entire area of the spell; you can make a wall of force that's 5'x5'x0.0001" if you want.

Ok, I get that it's got an infinitesimal 3rd dimension, and that it can be smaller than the maximum.

What I meant is better expressed by "is it's maximum size in the two dimensions it expands limited to 10ft/level, or is the area of the resulting surface limited to 100sqft/level?" there's a subtle difference, that I *think* the wording is trying to convey, otherwise why not just put "whose area is up to one 100 square feet per level"?

Malachi Tarchannen wrote:

Well, since there's not a wall of force anywhere in that scene, I guess you'll just have to paint it on your own wall of force. :)

J/K...

Well, exactly, what is the magic user using to hold back the dragon's breath? That was the point I was trying to get across.

Liberty's Edge

Green veil, initiate of the sevenfold veil, immediate action, cast as a wall. That's what I see there at least.


To me, a "wall whose area is up to one 10-ft. square/level" is pretty clear. You can make it as small as you like, but you're limited to maximum size equal to a 10-foot square per level. Now...a 10-foot square (10 feet on a side) isn't the same thing as 10 square feet (a bit over 3 feet on a side); a 10-foot square is equal to 100 square feet. So, a 10th-lvl wizard can make a wall maxed out at 1,000 square feet, etc.

As to its exact dimensions, I don't believe it must be perfectly square, so yeah...if your 10th-lvl wizard wanted to make a wall 1 foot wide and 1,000 feet tall, that would work. Or, 5' x 200', or 10' x 100', or 20' x 50', or 25' x 40', or even 32' x 31.25', and so forth.

Interestingly, of all the "wall" spells in the PFSRD, only wall of ice and wall of stone specifically say that they must be merged into an adjacent surface. All the others--fire, force, iron, and thorns--don't mention this requirement. Are we to assume that these walls don't have to be anchored or touching anything? That seems a bit far-fetched to me, but that's just my opinion.


I think what's depicted in that picture could be any number of things, but I would first look to an abjuration effect -- something as simple as Protection from Energy, in fact.

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