Elemental

Although the term elemental can be used as an adjective to describe a creature, object, or location that has been infused with the energies of the Elemental Chaos Overview, when used as a noun, it refers to a native of that plane, made up entirely of that plane’s form of matter. The most common elementals are formed of a single elemental, such as a fire, water, earth, or air. Other powerful elementals come from the intersections of those elements, such as when air combines with earth, or acid with ice, or lightning with air.
Most elementals can only come to Tol when summoned by mortal spellcasters. Occasionally, however, the walls between the worlds can be thin in places of extreme elemental influence, such as a mighty waterfall, a volcano, or a glacier. In these places, elementals can slip through unbidden, often causing havoc.