LuisCarlos17f
Legend
Now I am thinking about possible demiplanes or astral domains created "accidentally" when the zone of a plane is "tainted" by a different aligment or resonance. For example the formians conquer a zone, and then that space within is "shatered". Then the formians could be creating a planar empire conquering zones in other planes.
Or a zone could be "reconquered" becoming a new planet in a previous wildspace.
Then if a region within the Feywild was "tainted by the darkness" or within the Shadowfell "by the light" and a new (demi?)plane would be created, being this the origin of the Spirit Realm within Kara-Tur setting.
Let's imagine next to the Athaspace there is other wildspace, being this invaded by the giths and the defilers from Athas. After a long time those sorcerer-kings are defeated and the defiler magic erradicated, but not totally at least enoughly. Then that zone would become a planet within the wildspace next to Athaspace. And here we are free to create a zone like the region of Tyr from Dark Sun setting, but with enough freedom to add all elements from other sources.
Or a zone could be "reconquered" becoming a new planet in a previous wildspace.
Then if a region within the Feywild was "tainted by the darkness" or within the Shadowfell "by the light" and a new (demi?)plane would be created, being this the origin of the Spirit Realm within Kara-Tur setting.
Let's imagine next to the Athaspace there is other wildspace, being this invaded by the giths and the defilers from Athas. After a long time those sorcerer-kings are defeated and the defiler magic erradicated, but not totally at least enoughly. Then that zone would become a planet within the wildspace next to Athaspace. And here we are free to create a zone like the region of Tyr from Dark Sun setting, but with enough freedom to add all elements from other sources.