Setting

Known Planes of Existence

The Prime

Material Plane

 

Reflective Planes

Feywild •  Shadowfell • Mirage • Maelstrom

 

Elemental & Border Elemental Planes

Plane of Air • Plane of Fire • Plane of Earth • Plane of Water

Plane of Dust • Plane of Magma •  Plane of Ooze • Plane of Ice • Plane of Ash • Plane of Steam

 

Outer Planes

Mechanus • Nyx • Erebus • Gehenna

 

Other/Unknown

Astral Plane • Ethereal Plane • "Plane of Blood" • "Hope Ocean"

 

Not a Plane

Sigil

Theorized Planes of Existence

Outer Planes

Abyss • Arborea • Baator • Limbo

Theorized Planes to NOT Exist

Arcadia

Misc. Info
  • Fey, Shadow, mirror and storm- some other inner planes that came up when Mariana chatted with Vasalor more privately
    • Shadowfell, Mirage and Maelstrom

Vasalor learned things from lower planes: Nyx, Erebus, Gehenna