TheBaron said:
This is not your full text and out of context. Not to show you in poor light, but illustrates the points of my next comments. From what the general vibe of what I've read unless it's in black and white text specifically outlining it there is no challenging a rule. I think that is true hubris when discussing rules as this leaves no room for interpretation.
Your slant here is amusing.
This is a rules forum. Someone asked a question on the rules. It is fairly clear what the rule is if you do not throw a bunch of "extraneous interpretive stuff" which is not written in the rules into the mix.
Nobody is saying to not be creative and do what you want in your game.
We are merely stating what the rule is based on what is written.
TheBaron said:
I think there is a difference between being presumptious and being rational when interpreting rules. To believe something is the sole truth simply because it is stated or not stated in a limited text description and not allow interpretation of the text unless further text is provided is in my opinion breeding ignorant conformity.
You do not want conformity in rules??? What?
Again, you miss the point completely in your sidestep attempt here (i.e. not a discussion of the rules, but merely a side conversation) to justify your weakening position here.
The rules are fairly specific about how spells interact with each other. There is a reason for why game mechanics such as "line of effect" are carefully specified.
There is no possible way to list every way in which spells interact, so the designers listed a general set of rules. The rule on line of effect is that it goes until stopped by something that stops it. Fireball explicitly states what stops its line of effect: "material body or solid barrier".
We know that a Wind Wall is not a solid barrier. It is made of gas. It cannot be solid unless the spell states that it is solid.
So, we have to determine if it is a material body. Typically, the word material means something composed of matter (i.e. corporeal). Well, air is composed of matter and it obviously does not stop a Fireball. A Wind Wall is composed of air, so it too would appear on the surface to not stop a Fireball.
Now, there are specific rules about Fire spells and water which would indicate that even liquids would not be a "material body" EXCEPT for the fact that there are specific rules about Fire spells and water. In other words, they had to add in special rules about water and fire because the phrase "material body" was not sufficient.
From this, is becomes apparent that "material body" means something with some minimum amount of solidity. For example: a creature, an ooze, a sheet of paper, Solid Fog, etc.
Liquids by themselves and gases by themselves do not quality as a "material body" unless there is another rule (like the fire spells in water rules) to indicate otherwise.
Hence, Wind Wall is ruled out.
Likewise, there is nothing to indicate that a bead from a Fireball is a normal missile in any way shape or form. In fact, the opposite is indicated.
Finally, we have several examples of spells that ARE affected by Wind spells such as Fog Cloud and Gaseous Form. If a gas-like spell states that it is affected by Wind, it is. If it does not, it is not.
A Gust of Wind will pass right through a Wall of Fire. Neither the Gust of Wind nor the Wall of Fire will be significantly affected (i.e. games mechanics-wise) by the other spell. The air moved by the Gust of Wind might be warmed up by the Wall of Fire (GM dependent), but not enough to cause damage. The Wall of Fire may or may not be fanned (GM dependent on what "fan large fires" in Gust of Wind means), but the Wall of Fire spell explicitly specifies that it is affected by Cold, not Wind (there are no fire spells affected by wind rules like there is a fire spells affected by water rules). You cannot blow out a Wall of Fire with a Gust of Wind, nor can you stop a Gust of Wind with a Wall of Fire, because the rules concerning the magic of these two spells do not specifically affect each other. It is irrelevant that a strong normal wind can blow out a normal fire.
So, you have little beyond "interpretive license" and each GM is free to rule as he pleases to support your position. That is fine for a given game, but that is not the rule. That is a house rule.
"GMs should be free to do what they want" doesn't mean jack in a rules forum. It is a side discussion, not a rules discussion.