Inner Planes: Transelemental Planes

There are the four elemental planes. Then there are four paraelemental planes, each with a mixture of two adjacent elements. Shouldn't there be four planes somewhere that each combine three of the elements? Planes of sand, metal, wood, and haze may have been considered before, but not necessarily as one set. Some consider planes like Wood and Metal to be proper Elemental Planes, while others just write them out of their models. I suggest the Transelemental Planes, realms that are nearly in balance but lack one of the four elements--indeed, the missing element becomes a true force of destruction on these planes, which might be difficult because magic associated with the 'missing' element is inhibited.

Sand (Air+Fire+Earth) An endless desert with temperatures ranging from rather warm to blistering hot. Surprisingly habitable otherwise, provided that you brought water and something to hide under in the event of a sandstorm. The natives of this plane are highly vulnerable to water.

Wood (Air+Water+Earth) A neverending tree. The natives of this plane are highly vulnerable to fire. See other documents for details.

Metal (Fire+Earth+Water) An alien realm of solid metal. Iron, copper, tin, lead, sodium, magnesium, and other metals all in their pure forms. Numerous tunnels and cavities permeate the plane, but there is no air--the spaces are filled with mercury. Many of the plane's natives would crumble to pieces, or even explode if exposed to air.
Haze (Fire+Air+Water) Like the Elemental Plane of Air, but more like a sauna. Those who say the Quasielemental Plane of Steam should really be called "Mist" might say that this is the real plane of Steam. There is almost no natural ground, which is good for the natives because with their fast flying speeds, poor maneuverability (Clumsy if you want to be technical), and the plane's poor visibility, anything that could create a large chunk of earth or stone would probably be exceedingly dangerous.