Warrior is one of the two starting classes. The other option being the mage.
The warrior can be recognized both by wearing heavy armor, and usually by having equipped either a one-handed or a two-handed sword. In order to be capable of carrying the weight of his increasingly more protective armor he must raise his armor skill.
The warrior primarily uses his weapon for battle, which requires little interaction from the player, thus warrior's are often recommended for new players. He can also cast Warcry, which is a skill that impacts the enemy by either a slow or a complete stun depending on the power of the warcry compared to the enemy's immunity. Additionally, it gives the warrior a temporary shield at the cost of endurance.