Third Warrior Class

For all created Sentou Gakuin characters that are students, you are allowed to train in a certain Class in order to learn a new Warrior Class for your character. You need to first sign-up in a certain Class [such as Spellcaster, Ninja, Puppeteer, Ninja, etc.] and take classes until the Tsurabi or Master allows you to edit that Warrior Type into your character and learn/create moves with that Warrior Type. Each teacher of a class may have certain requirements or amounts of times that you must attend the class while some may allow you to have it by simply signing up. Speak to the mod of the class for information on how he or she will allow you to gain the Warrior Type.

This way is simply an objective alternative. There are other methods of getting a third, fourth, fifth, etc. Warrior Type such as buying an item or through missions but this may or may not be the easiest method.