afroakuma's Planar And Other Oddities Questions Thread VI

[Tzardok]

The difference is: the Prime is made of many crystal spheres that are seperated by phlogiston. Every crystal sphere contains one (or rarely more) worlds. An alternate material plane would be a whole other plane, which would be part of another cosmology. The different multiverses are connected by the shadow plane. A given multiverse could also have more than one standard Material Plane, but the Great Wheel doesn't. Note that crystal spheres are not part of canon 3rd edition and that all settings there are alternate cosmologies.

I hope I could help.