A new use for extra dimensional space [Archive] - Wizards Community

Post/Author/DateTimePost
someonelse812

08-31-07, 12:43 PM
I came up with a cool idea, I have never seen this anywhere else before, but I wouldn’t be surprised if its already been done. The purpose of my post is to share the idea with everyone else, and to get the bugs worked out. So flamers, flame on, do your worst.
Also, should I tack on some ad hoc XP for this?

I’m going to leave out campaign detail since it is irrelevant to this discussion.

The PCs are invading the lair of a lich, when they finally confront the lich and do battle with him in his inner sanctum they discover the special properties of his room.

The walls all around the room contain an extra dimensional space, 30ft deep. The Lich can spatially move beyond the walls of this room, but he still appears in front of the walls. This only works for the Lich, no one else, not even his minions. While he is beyond the wall he can direct spells at targets within the room as normal, but any attack with a physical manifestation that is directed at him hits the wall instead. Area, cone, line and melee touch spells do not work, range touch spells and spells that designate a specific target do work. Also any kind of gaze attack would work, turn undead can also be used.

Dispel Magic DC26, if it is dispelled the Lich is immediately moved to the nearest available space.
tarkin

08-31-07, 02:01 PM
Why are you using the word extradimensional.

(with thanks to the Princess Bride)

"I do not think that effect does what you think it does".

There is nothing inherent about extradimensional spaces that blocks physical manifestations. In fact, the exact OPPOSITE of that occures.
someonelse812

08-31-07, 03:42 PM
he is using space that doesnt exist, he is not actually beyond the wall. thats why I called it extra dimensional.
tarkin

09-01-07, 08:49 AM
The word extradimensional does not change the fact that if he can get there then anything else can get there.


If the wall is between him and everyone else, then it stops him from affecting them as much as it stops them from affecting him.

The best way to think of an extradimensonal space is that waht the players see is a Portal/Gate to another plane where the 'extra dimensional' space exist. Usually the portal/gate is moveable.

If there is a gate in front of the wall, then the PC's can attack the wizard on the other side of the Gate.

If there is a Gate on the other side of the wall (wierd idea) then no one and nothing can get through the gate without first removing the wall/going through the wall.
someonelse812

09-01-07, 09:37 AM
well this is different. your whole point is semantic, I dont see that it matters at all.
Kursk

09-01-07, 10:46 AM
A new use for extra dimensional space

What you describe is not an "extra dimensional space". Thus, not really a new use. You should probably call this effect s/g else to avoid confusion.
someonelse812

09-02-07, 03:00 PM
ok fine, its not an extra dimensional space. I get it. you're right, I'm wrong. jeez. can we please move on?
Jeweler

09-02-07, 07:34 PM
Well you said you wanted the flamers. Anyways, I am having a hard time understanding what this really does, when I read I try to visual things and all you are describing to me is Far Realm stuff, meaning I can't visualize it. I don't care how big the room actually is I am going to say it is 60 feet big, 30 feet of that is past your wall magic. So you have a 30 ft room, to the PCs, that has your Lich in it, he then steps past the back wall, 35 ft, but does not actually appear to walk past the wall, even though he is. So he looks like he is at the back wall still and decides to cast a spell, first off what does the illusion, as that is what it has to be to still look like he is there *Which I hope you wasted a slot for whatever spell level Programmed Image is*, second off if it can be dispelled chances are you are describing an illusionary wall spell, some name like that, and a programmed image spell. Third if it is an illusion then the spells will effect the programmed image, and don't quote me on this but, that should destroy the image and give the PCs a hint that there is an illusion when they get hit by another spell from behind the wall.

As to the ad hoc experience, depends, did the lich spend the 2, at least, spells required to create the illusionary wall and programmed image? Or in some way, like wands or scrolls, create the effect? If not than it should be worth experience close to a trap of the EL of the minimum level of wizard needed to cast the highest level spell in my opinion.
someonelse812

09-02-07, 09:41 PM
ya, I guess I had that coming.

this dungeon is full of magic that the lich is (or is not) not affected by. this is one of those. I was trying to create something new.

its not an illusion though. he is physically past the wall, he is sort of phased out so that he can move beyond the wall. this is more for defense than anything else. he can still direct spells at them, but there are very few attacks that can reach him.
Kimokeo

09-02-07, 10:20 PM
When I read your post, I was thinking the spell Rope Trick.
Extradimensional space - that's the term used.

Spells that don't work across planes cannot be cast into the space. Creatures in the space are hidden from view.

The Feat in Complete Arcane, Transdimensional Spell, helps.

I think, what would be even more dangerous to the group, is the extradimensional space, without a lich. In most cases of a group against a lich, someone (or all) has a bag of holding or Heward's haversack.

There is serious consequences to enter the extradimensional space while carrying one of these. It would make an interesting encounter, if the party found themselves dropping all their equipment to fight the lich inside...