- Not to be confused with unbound elemental.
Bound elementals are a type of elemental, that are bound to cages, introduced in World of Warcraft: Cataclysm. Freeing a bound elemental makes him an "unbound elemental" as seen during . There are other bound elementals in World of Warcraft not using the "Bound elemental" model. Some of them like the Bound Fire Elementals even share the same name.
World of Warcraft Art Director Chris Robinson explained that during the development of Cataclysm the art team was sick of seeing the old elemental models in the game, so they wanted people to look at new content. Throughout the process they also started working with the Twilight's Hammer art heavily keyed into the Elementium vibe. Since the Twilight's Hammer needed to subjugate elementals, the art team wanted to integrate the elementium vibe to the new look of the elementals. The solution was that the Twilight's Hammer literaly cage them in a physical elementium structure around the elementals to control them, meaning that all the different new elemental models got the same cage holding them.
A bound water elemental in Hearthstone