Wall of Force and Spells

[Olive]

Just to check something...

A wall of force spell creates an invisible wall of force. The wall cannot move, it is immune to damage of all kinds, and it is unaffected by most spells, including dispel magic. However, disintegrate immediately destroys it, as does a rod of cancellation, a sphere of annihilation, or a mage’s disjunction spell. Breath weapons and spells cannot pass through the wall in either direction, although dimension door, teleport, and similar effects can bypass the barrier.

Just to make sure, this means what it says right?

A player argued, albiet a bit half heartedly, that a summon monster didn't pass through the wall, it just started on the over side. A fireball on the other hand creates an effect (the pellet) that would have to pass though the wall...

But he's wrong right? Any spell effect that the caster wants to appear on the other side of the wall will fail right?

 

[Starglim]

A line of effect is a straight, unblocked path that indicates what a spell can affect. A line of effect is canceled by a solid barrier .. You must have a clear line of effect to any target that you cast a spell on or to any space in which you wish to create an effect. You must have a clear line of effect to the point of origin of any spell you cast.

The Player's Handbook actually adds "(such as conjuring a monster)" as an example to the second-to-last sentence. A wall of force definitely prevents summoning creatures into any space directly beyond it.

 

[Mephistopheles]

But he's wrong right? Any spell effect that the caster wants to appear on the other side of the wall will fail right?

If it requires a line of effect then it will fail. Summon monster requires a line of effect between the caster and the spot where the summoned creature will appear.

 

[Olive]

The Player's Handbook actually adds "(such as conjuring a monster)" as an example to the second-to-last sentence.

Uh... does it? Cos in my PHB the second to last sentence is "Wall of Force can be ade permanent with the Permenancy spell." And I can't see that line anywhere else either... not even in the 3.0 book.

 

[Pax]

The point is, Wall of Force blocks the ever-important line of effect, which you need to have to the position the summoned creature will appear in.

 

[reanjr]

Just to check something...



Just to make sure, this means what it says right?

A player argued, albiet a bit half heartedly, that a summon monster didn't pass through the wall, it just started on the over side. A fireball on the other hand creates an effect (the pellet) that would have to pass though the wall...

But he's wrong right? Any spell effect that the caster wants to appear on the other side of the wall will fail right?

I'd have to go with the player on that. I see summoning a monster kinda like teleportation; it's just done remotely.

[edit] Apparently I am wrong. The SRD is vague on it. The PHB is not apparently.

 

[Starglim]

Uh... does it? Cos in my PHB the second to last sentence is "Wall of Force can be ade permanent with the Permenancy spell." And I can't see that line anywhere else either... not even in the 3.0 book.

The second-to-last sentence that I quoted. See the "Line of effect" text, second paragraph, page 176, PHB.

 

[Olive]

The second-to-last sentence that I quoted. See the "Line of effect" text, second paragraph, page 176, PHB.

Ah, sorry... I wasn't paying attention. I get you now.