Developed specifically for use on the Inner Planes, this spell turns normal earth (rock, dirt, sand, mineral, and so on) into a less dense, breathable substance. Anyone within the area of effect is able to breathe even if completely "submerged" within rock or soil. This spell not only permits all air-breathing creatures within the radius of the spell to survive without suffocating, but it allows them to move slowly as if swimming through the earthy medium. The rate of movement depends on the type of earth:
Sand 3 per round Soil 2 per round Rock 1 per round
If characters within an airy earth spell attempt complicated maneuvers such as combat strikes, the DM should treat the situation as though the characters are underwater. Earthbased creatures, such as elementals, kharga, and xorn are not hindered or affected by this spell.
The globe is centered on and moves with the caster. Uniquely, this spell has only material components. Thus, even if a caster cannot move or speak, he can cast the spell simply by willing it. The material components, a pinch of salt and a drop of acid, are consumed at that time. Airy earth is effective only on the Elemental Planes.