Is there a guide to how Extradimensional/Nondimensional spaces interact?

[Gavinfoxx]

Is there a guide somewhere to all the rules about which spells and items that use extradimensional or nondimensional spaces or whatever interact 'badly', and which ones do not, and where the sources for these rulings are?  Has someone compiled all the 3.5 flavor text and rules text on this topic and come up with a simple, specific handbook to Dos and Don'ts with these sorts of things? I would REALLY REALLY like to find such a thing if someone DID make it... Thanks!

[Catty Nebulart]

There is somewhere in the handbooks section of some DnD forum, I think it's this one, let me see if I can dig it up...

[Gavinfoxx]

Google-fu has shown me a few threads here and there...

http://www.giantitp.com/forums/showthread.php?t=182150
http://www.enworld.org/forum/d-d-legacy-discussion/82782-extradimensional-vs-nondimensional-spaces.html
http://www.enworld.org/forum/d-d-legacy-discussion/196492-extradimensional-spaces-within-extradimensional-spaces-always-dangerous-not.html
http://www.enworld.org/forum/d-d-legacy-discussion/213943-bag-holding-dimension-door.html
http://www.giantitp.com/forums/showthread.php?t=129964
http://www.dndonlinegames.com/showthread.php?t=83582
http://www.enworld.org/forum/d-d-legacy-discussion/67384-extra-dimensional-spaces-nondimensional-spaces-pocket-dimensional-space-yeah.html

And apparently the two terms 'extradimensional' and 'nondimensional' MIGHT be synonyms for the same concept... they are mentioned as synonyms on one of the items. O,o

Did FAQ or CustServ ever mention anything (yes, stop laughing, I know I know)...

[Catty Nebulart]

yes; http://www.wizards.com/default.asp?x=dnd/rg/20051101a

[Gavinfoxx]

And the 3.0e FAQ. Which contradicts itself on this topic.

#$)@*#$!

[awaken DM golem]

Contradicts? No surprise.


hmm ... y'know they didn't have to use two different words for the same thing.
And usually they don't.

I bet there's some interesting and weird interactions lurking within all this.
Lots to read.

[snakeman830]

The only RAW interactions I've seen have been between a Bag of Holding and Portable Hole, specifically.  No other extradimensional spaces have any text on interactions with other items.

[Gavinfoxx]

What items mention 'bag of holding' or 'portable hole' as what they act like? Other than the two belts with the pockets that are miniature bags of holding?

[SorO_Lost]

I suspect the reason Rope Trick says anything is to keep you from casting Mordenkainen's Magnificent Mansion inside of it.

Also: Sometimes player characters can get downright silly about what they place in their bags of holding and will attempt to stuff inside it anything that's not nailed down. Player characters also love to stuff their comrades, living or dead, into their bags of holding. Is kinda true, but replace "comrades" with "everybody" and "nailed down" with "nailed down & on fire".

[weenog]

Also: Sometimes player characters can get downright silly about what they place in their bags of holding and will attempt to stuff inside it anything that's not nailed down. Player characters also love to stuff their comrades, living or dead, into their bags of holding. Is kinda true, but replace "comrades" with "everybody" and "nailed down" with "nailed down & on fire".

We have shrink item and gloves of storing for that.

[Sorator]

For reference, the SRD entry for a bag of holding says this:

If a bag of holding is placed within a portable hole a rift to the Astral Plane is torn in the space: Bag and hole alike are sucked into the void and forever lost. If a portable hole is placed within a bag of holding, it opens a gate to the Astral Plane: The hole, the bag, and any creatures within a 10-foot radius are drawn there, destroying the portable hole and bag of holding in the process.

Rope trick, on the other hand, has one sentence on the subject that is much more general:

Note: It is hazardous to create an extradimensional space within an existing extradimensional space or to take an extradimensional space into an existing one.

What items mention 'bag of holding' or 'portable hole' as what they act like? Other than the two belts with the pockets that are miniature bags of holding?

Only ones that I know of are the ones you mentioned (belt of many pockets and it's nerfed version in the MIC) and Heward's Handy Haversack, which has two side pockets which are "like a bag of holding".