Elemental creatures are native to the Elemental Chaos or the Abyss. They are strongly tied to elemental energies or substances. [MM:281]
Elemental energy is available to users of most power sources. Powers gain the elemental keyword only if they draw energy directly from the Plane Below. Since there are a number of different ways to access the Elemental Chaos, the elemental keyword is usually paired with another power source, such as arcane or primal. Characters of the elemental origin have a stronger connection to true elemental power.[HotEC:39]