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This is centre of the known universe. This plane possesses the most potential of any other plane in the universe and was what Promethius intended when he created the universe. Here anything is possible. Here the Laws of the Universe were born and could easily be broken.

It is touched by three other planes only. True enough demonologists and necromancers are able to open gates to the Outer Planes but these gates are temporary and extremely unstable. Because of the powerful nature of the Prime Material Plane it is easier to draw something to it than from it. For example a demonologist in the Abyss would struggle to summon anything from Grayhawk but the other way round is relatively easy.

This touches every part of the Prime Material as well as extending out to the furthest reaches of the universe.

This co-exists in exactly the same place as the Prime Material. Whenever someone goes invisible they enter this plane of existence, occupying the same space but able to seemingly disappear. Similarly invisible objects enter this plane.

Any detection spell uses the negative energy of this plane to see the object or person the sorcerer is looking for. As with the Prime Material the Negative Material is also connected to the Astral Plane.

This exists in the Prime Material Plane plane in much the same way as the Negative Material; the main difference is that creatures on the Ethereal Plane cannot be touched though they are able to see misty visions of the Prime Material.

This plane is the vehicle of blink spells and other such instant movements (teleport). It exists in the Astral Plane but not in any of the Outer Planes.