It depends what your powers are. Here are the classes.
For people that can control elements, fire, Ice, wind,Air Etc
Element class advanced/hero: you will learn how to fight better, and use them for good. Since you are a hero, you learn more, and have more advantage over ranks below you.
Element class regular/sidekick-hero in training:
You will learn almost the same as Hero Element training but not as tough or severe teachings. You will learn one thing the hero's won't need to learn: control. Control is when you have to keep track of where you cast the element. You cab control the Element with your mind.
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Flying/possesive, massive power
Possessive power/advanced: this is where heros that can fly, that have powers that you don't usually see. If you are a hero and you control your element and you can fly then you usually join this class.
Possesive power/regular: This class is for people that can fly that are a sidekick or hero in training. You will learn how to use your powers wisely.
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Potions/poison
P&P advanced: this class is for hero's expecially ones that can control elements, to come and experiment with it. People that can run through walls etc. usually make potions and poisons with Plant DNA while the people that control elements, use their DNA to experiment on whatelse they can do.
P&P regular: the people here usually do the same things as Hero's but they concentrate on how to control the potions with their mind.
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Fighting skills
Fighting skills advanced: You will learn how to use your powers when fighting. You will not just learn how to use your powers but how to fight with fists.
Fighting skills regular: you will learn almost the same thing as Hero's but you will not learn how to use your feet or fists until you level up to advanced.
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Mental control-
M.C advanced: This is where people learn how to control their minds if they have mental powers. Advanced learns how to do it on more difficult basis, like consentrating harder and moving things faster.
M.C regular: You do the same thing as Advanced but you don't have to consentrate as hard.
That was just an overveiw.
