Elementalist Lux Teaser

i just want to know why she is considered an "elementalist" or moreover is elementalism, which is defined as:

~A magical skill that harnesses the power of the four** physical** elements: earth, air, water, and fire. Elementalism in Achaea, is unique to the Magi class.

But we get fire, water, LIGHT AND DARKNESS... I get that all ultimate skins take the base idea and crank it to 11, but darkness and light are not elements... fire makes light, and water puts out the fire and said light... k... of course this is only a teaser so I will hold off until it is known her "elemental" powers are silly or not. but if there isn't earth and wind, this skin will bother me

Seriously? She just received what was arguably highest quality Star Guardian skin (comparing features/changes vs. cost) and now she's getting another skin?

Goddamn it, Rito.

Is it just me or did they fire the sound designer? I thought that guy was good at his job.