Back when Azeroth was created, the Old Gods created Four Elemental Lords to keep balance over the world of Azeroth. The Four elements are earth, air, fire and water. Each element has an elemental lord that rules over their given territory.
Al'Akir the Windlord is absolute ruler over the skies, air and storms.He is the weakest of the four Elemental Lords of the Old Gods. His domain is the sky over the Elemental Plane
,
which touches all of the other elements. Consequently, it "...interacts
with them more than any other, and yet he is the most capricious and
aloof of all the Lords. He is as likely to stir up trouble one day as he
is to casually ignore incursions the next." His mood can quickly
change, much like the weather.
He is revered by all air elementals and creatures that fly. It is said
that he is aware of all air spells that are cast anywhere throughout the
multiverse - although this might be true, he rarely becomes personally
involved in their resolution unless they affect him directly.
Neptulon the Tidehunter reigns supreme in his domain, the deep
ocean. Users of boats and other such water-crossing utilities risk his
wrath; entering his domain without express permission is tantamount to
doom. He revels in taking those whom feel invulnerable, especially Therazane's rocky beaches and the flames of Ragnoros, when given the chance. He rules over all water, whether it be the sea, the ocean, river or lake. All water elementals
worship him, as do all creatures that use water or the cold for their
abilities. It is said that when an intelligent creature drowns, his or
her soul will pass through his realm on the way to its end. It is
supposed that he keeps those souls which amuse and interest him, but
Neptulon only laughs at such suppositions.
Therazane the Stonemother is ruler over the earth, dirt, rock, and mountains. She is revered by all earth elementals
and creatures that dwell underneath the ground. Some druids of the wild
see her as the embodiment of all that is peaceful and calm about the
world. Some sages believe she feels pain whenever the ground is sundered
and weeps at the destruction wrought by Deathwing and his ilk. If so,
however, she has done nothing specific to oppose the great dragon.
Therazane is the most peaceful of the Elemental Lords
.
She is a patient, loving, motherly type who encourages growing things
and loves simply to spend long periods of time relaxing with those
creatures that make their homes upon her.
Ragnaros the Firelord is an incredibly powerful Elemental Lord and master of all fire elementals
. He rules over his minions from deep inside the firey core of Blackrock Mountain. In the raid "Molten Core" the various players of World of Warcraft defeated Ragnaros, however he was not destroyed. When an elemental lord is killed in Azeroth, it is sent back to it's Elemental Plane. In the latest expansion of World of Warcraft, Ragnaros is defeated once again in his elemental plane, and is forever destroyed.