Characters of a given class are said to fill a particular role in the party, especially in combat. "Leaders" are focused on buffing and healing allies. "Controllers" focus on affecting multiple targets at once, either damaging or debuffing them, or altering the battlefield's terrain. "Defenders" focus on blocking attacking enemies or drawing their attacks to themselves and are typically focused on melee combat. "Strikers" are focused on mobility, dealing heavy damage to single targets and avoiding attacks. While some Leader and Striker classes and builds are focused towards either melee or ranged combat, the roles as a whole are not.