Warlord
The Warlord begins the game as a very powerful fighter. As the game progresses his power only increases. He has the ability to rally his troops and inspire them to fight harder. He can also berserk his troops, making them mad with rage, increasing their attack points, but decreasing their defense.
Thief Lord
The Thief Lord is not an extremely useful fighter, nor is he a magic-user. The great advantage of a thief is to spy on and sneak around enemies. A very high level thief can only be caught by another high level thief. The Thief Lord's special abilities are to sneak, making himself invisible to other parties. He can then attack from behind, spy on them, or flee unharmed. Thieves can also detect other thieves who are attempting to hide.
Mage Lord
The Mage Lord is not an extremely powerful fighter, although they can fight if they must. Mages have spells that can be cast to damage enemies, protect allies, and even change the land! A high level mage can be extremely difficult to kill, even alone.