Nuker

This term refers to a casters specializing in dealing heavy damage to large numbers of enemies with a Nuke spell. Elementalists have access to a large and diverse array of such skills, so is usually favored to fullfill this role in a party. When asking for a Nuker, players almost always mean Elementalists more specifically pyromancers, who inflict AoE and massive damage spells. However, some Necromancer builds match the damage dealing potential of Elementalists, and are sometimes called Nukers (see especially N/Me SS Nuker).