don't you dare to take my lovely Mezznar away from me
Voidwalkers - The void does what it wants to. If that means helping a warlock it will. Void in Legion controlled areas? Argus and the Etherials beg to differ.
Water elementals - Shamans don't control the elements. Dark shamans could enslave small parts of it but they never controlled the whole. Water elementals team up with frost mages who are using an aspect of water magic, my words not Blizzard's, of their own free will.
The caster uses the forces of nature to create a water elemental. He summons the forces of air and water and combines them into a simulacrum to defend the lands.
[...]
Water Elemental
These creatures are made of the magical essence of water. Once created, they are loyal servants, and will unerringly do the bidding of their masters.
[...]
Water Elemental
These are creations of Human magiks. Occasionally found in the service of their Conjurers, these simulacrums have the powers of water to use as they will.
--WC1 manual
By use of this spell an Archmage can summon and control a powerful elemental comprised of water and air vapors. These creatures, capable of hurling torrents of rock-solid water at their enemies, cannot remain in the physical world for long. Thus, after a short length of time, they will vanish and return to their base liquid forms.
[...]
Water elementals were a favorite tool of the Conjurors of Azeroth during the First War, and now the enchanted creatures have come to aid the defenders of freedom once again.
--WC3 manual
There was a searing flash, and a beam of light shot outward from the Focusing Iris to the ocean.
With one hand on the Iris still, Jaina lifted the other and made the familiar motions of a certain spell.
Before, this spell had created a single elemental. Now, so quickly, there were ten. Ten shimmering, imprisoned water elementals standing on the surface of the sea, their eyes glinting, what served for their arms encased in manacles.
Jaina laughed. Then she made more. And more still, until there was scarcely any unenchanted water to be seen.
--Tides of War
The Ethereals on Argus have nothing to do with the Legion, rather, they're enemies. The Legion is terrified of the Void, which is why they started their Legion. The Void wants the Legion out of the way so the Void Lords can take control. The part in Mac'Aree where the Void dwells is not controlled by the Legion.
The caster uses the forces of nature to create a water elemental. He summons the forces of air and water and combines them into a simulacrum to defend the lands. They are excellent creatures, and will never turn upon their creators. The element of water was chosen because it is persistent as in the state of erosion, and it is the opposite of fire, which seems to be the element that the Orcs favor.[4]
Do a Higher Learner achievement for hardcore mode.
Or visit a wiki page for dirty peasant mode: https://wow.gamepedia.com/Magic_schools
Originally Posted by Urban Dictionary
The @OP needs some heavy lore education
Mages conjure constructs created out of whatever element they have affinity with, while Shaman bring a conscious and sentient creature from the elemental plane. It's why Mages can create arcane elementals, but Shaman cannot summon them.
RETH
How come we are discussing what the elemental is and of, but not the actual school the mages use to control them? The water elemental is a creature conjured from Water and Air connection.
The caster uses the forces of nature to create a water elemental. He summons the forces of air and water and combines them into a simulacrum to defend the lands. They are excellent creatures, and will never turn upon their creators. The element of water was chosen because it is persistent as in the state of erosion, and it is the opposite of fire, which seems to be the element that the Orcs favor.
(Source)
FOMO: "Fear Of Missing Out", also commonly known as people with a mental issue of managing time and activities, many expecting others to fit into their schedule so they don't miss out on things to come. If FOMO becomes a problem for you, do seek help, it can be a very unhealthy lifestyle..