CRGreathouse
Community Supporter
First, if you're playing in the Band of Dwarven Brothers campaign, get out lest your DM smite you. 
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Hi EN World, long time no post. Anyone from the olden days remember me?
I have a high-level group which just found themselves dumped on a plane of chaos following a failed plane shift attempt. Not coincidentally it's the same plane that's on a collision course with the Material following... well, a plot the PCs never quite picked up on.
They've tousled with the plane before, but only insofar as portals have opened to it, allowing creatures and plane-stuff through to their home plane. This will be the first time they've been there -- and they'll leave as soon as they're physically able. (They've already cast all three of their plane travel spells for the day.)
What they've seen so far -- the effect of a portal to this plane on the Material -- was pretty substantial: geometry became discontinuous (allowing, among other things, creatures to attack nonadjacent PCs); objects appeared* and disappeared; gravity was altered; etc. I'm looking for ideas for what else I can do when they're actually on the plane itself. Clearly the effects should be much stronger!
I'm looking for things which will create the right sensation and feeling of the plane more than anything else. But I don't want just descriptive text, which is easy to ignore, but also things which change the way things work for the PCs, especially combat. It doesn't have to make it harder, in some cases making it unexpectedly easy would be nice. But I want it to come off as harsh and alien, to drive home the importance of their quest to stop the planar disaster.
Any ideas? I have all the standard resources (Manual of the Planes, Lords of Madness, Planar Handbook, Complete Book of Eldritch Might, Beyond Countless Doorways) and the high-level stuff (Epic Level Handbook, Deities and Demigods, Epic Monsters, [Denizens and] Legends of Avadnu, Quirin Mythology) should those be needed.
I don't need suggestions on what creatures live there, though if you have suggestions I wouldn't turn them down. I'm mainly looking for "environmental" effects: how strange I can make the plane itself.
* Including an homage to Douglas Adams in which a whale fell on the party. The campaign is actually serious rather than humorous, but elemental Chaos gives me a bit of wiggle-room.

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.
.
Hi EN World, long time no post. Anyone from the olden days remember me?
I have a high-level group which just found themselves dumped on a plane of chaos following a failed plane shift attempt. Not coincidentally it's the same plane that's on a collision course with the Material following... well, a plot the PCs never quite picked up on.
They've tousled with the plane before, but only insofar as portals have opened to it, allowing creatures and plane-stuff through to their home plane. This will be the first time they've been there -- and they'll leave as soon as they're physically able. (They've already cast all three of their plane travel spells for the day.)
What they've seen so far -- the effect of a portal to this plane on the Material -- was pretty substantial: geometry became discontinuous (allowing, among other things, creatures to attack nonadjacent PCs); objects appeared* and disappeared; gravity was altered; etc. I'm looking for ideas for what else I can do when they're actually on the plane itself. Clearly the effects should be much stronger!
I'm looking for things which will create the right sensation and feeling of the plane more than anything else. But I don't want just descriptive text, which is easy to ignore, but also things which change the way things work for the PCs, especially combat. It doesn't have to make it harder, in some cases making it unexpectedly easy would be nice. But I want it to come off as harsh and alien, to drive home the importance of their quest to stop the planar disaster.
Any ideas? I have all the standard resources (Manual of the Planes, Lords of Madness, Planar Handbook, Complete Book of Eldritch Might, Beyond Countless Doorways) and the high-level stuff (Epic Level Handbook, Deities and Demigods, Epic Monsters, [Denizens and] Legends of Avadnu, Quirin Mythology) should those be needed.
I don't need suggestions on what creatures live there, though if you have suggestions I wouldn't turn them down. I'm mainly looking for "environmental" effects: how strange I can make the plane itself.
* Including an homage to Douglas Adams in which a whale fell on the party. The campaign is actually serious rather than humorous, but elemental Chaos gives me a bit of wiggle-room.