Elementalist, About

"Elementalists are multi-faceted spellcasters that channel elemental forces, making fire, air, earth, and water do their bidding. What they lack in physical toughness, they make up in versatility and the ability to inflict massive damage in a single attack."

Elementalists have harnessed Tyria's natural forces. Their powers of destruction are drawn from an affinity with the four elements that make up the world. They conjure air, fire, earth or water to assault their enemies. As a scholar profession, elementalists wear light armor.

http://metabattle.com/wiki/Elementalist
http://wiki.guildwars2.com/wiki/Elementalist