I have tended to think this too; however, now I am wondering if it goes the other way. What if the gave Spelljammer some Planescape touches. What if Sigil was its own Crystal Sphere.I think we may rather get a kind of mish-mash between spelljammer and planescape, as shown in BG3 where instead of flying through space and Phlogiston, the nautiloid flies through skies and the planes.
Given that there is only one prime material plane, I think there is probably only one of the other planes too. Ravenloft and Feywild domains are the equivalent of crystal spheres.I still want to know if the Crystal Spheres have Feywild and Shadowfell mirrors.
Given that there is only one prime material plane, I think there is probably only one of the other planes too. Ravenloft and Feywild domains are the equivalent of crystal spheres.
Given that there is only one prime material plane, I think there is probably only one of the other planes too. Ravenloft and Feywild domains are the equivalent of crystal spheres.
What I mean is given that the Feywild & Shadowfell (and border ethereal & border Elemental Planes) funhouse mirror the the material planes geography. So where a Crystal Sphere exists in the material plane, a Crystal Sphere with a twist would also exist in the Shadowfell and Feywild.
Say your Spelljammer is parked 10 metres from the Crystal Sphere in Realmspace and you planeshift to the equivilant spot in the Shadowfell, if it's mirrored there should be a warped version of the Crystal Sphere 10 metres ahead of you, maybe the Shadowfell Realmspace sphere is made out of charred bone or obsidian, weaved together zombies or something (and the Feywild version might be made out of pure magical energy, or living wood, or solidified perfume).