This is the High Elven support class and the main DPS of any group. In the High Elf armies, the Archmages are those that can heal and call upon their centuries of training to pull down the might of the magical heavens upon their enemies and smash them. While paired up with the Goblin Shaman in WAR, these two classes only meet on the RvR battlefields. Those that have played Bright Wizards will find that the Archmage's powers well exceed anything that they are used to, as they are able to use all of the Winds of Magic at one time, unlike their Human counterparts who can only use one.
Since this class is the mightiest magic weilder in the game, they are sought after for groups and RvR to help keep those other ranged classes off of the tanks and off-tanks and help to be a support healer when needed. This class uses "action point based" spells that will leave you stronger overall, instead of weaker, after you have used them. So, this is another great way that the Archmage builds upon their powers and health, by simply doing what they are meant to do.