Chaosmancer
Legend
Not as written, no.
Unless they homebrewed it away, that's how it worked in those campaigns.
Does it count as homebrewing it away if you never once mention it and it effectively never exists? Or do you have to explicitly say "hey this thing that was made decades ago that has never been true in my world and that I've never mentioned isn't true in my world"
Because, funny enough, when the Shadowfell was created in 4e... the negative energy plane wasn't put back into the cosmology. So the Shadowfell was created to work without the negative energy plane. Sure, the Forgotten Realms campaign book for 4e said it was part of the creation of it, but Nerath was the default world of 4e, and it never had a Negative Energy plane nor does Shar exist in that world to create the Shadowfell by taking energy from the Negative Energy Plane.
I mean, I guess you could claim that all settings are subservient to FR lore that came out later, and that all settings and lore from are also subservient to it, but that seems rather silly to claim that Nerath and Eberron must obey the lore of The Forgotten Realms, and not the other way around.
The outer planes work differently. The inner planes provide everything that goes into constructing the prime plane.
Oh, I see. They work differently. So fire can exist without cause in the Outer Planes, because they work differently. But the inner planes fire MUST have come from the Elemental Plane of Fire and no other possible cause should even be considered.
After all, the Great Wheel is only the best guess of fallible mortals, so it must be 100% irrevocably true in all circumstances.
Personally, I would use the inner planes in the construction of the outer, but that's not how it is written. The outer planes work on belief(older lore) or thought and spirituality(new lore) and since the belief/thought/spirituality in question is that of the mortal races, it's no surprise that they were created by those mortals with all of the elements present.
Ah, so, something took the "inner planes" which were perfectly divided into 16 different distinct chunks, and used that to make the material plane, feywild and shadowfell. Then those inner planes created the Outer planes with thoughts about the stuff that the something used to create them, because whil fire existed as a concept, it wasn't a concept in the material world that didn't exist yet, so it had to be taken and make that world so that the concept of fire could be brought to the outer planes.
I bet if you twist a bit more to the left you could get that crick out of your spine too.