When the casters have their noses in the spellbooks meditating for the next heal or for the death blow, the warriors will be battling on. While casting types await to get new spells and other meelee types await for new special skills the warrior really lives from item to item. A warriors livelihood lies in his equipment. The advantage of this is that a warrior can concentrate purely on equipment and does not have to worry about spells and the like. It is important to always have the best equipment possible at your level because this equipment can and will mean the difference between life and death.
Traditionally warriors are the leaders of a group.
They are the ones who brave the foes first. They are the first ones who take the damage, and often they are the first to die. A warrior must have faith in his party members. A warrior needs to have the courage to stand and fight until his healers get enough mana to throw him a heal. A warrior must have the heart to stand in there while the wizards get the mana to deal the death blow.