Tank
Focuses on defense. Good, strong build for beginners. Combined with health regeneration, the tank will be unstoppable on the first 30 levels.
Pros: Straightforward to play.
Cons: Long lasting battles, since the tanks offensive is weak.
Mage
Focuses on magic. For advanced players only.
Pros: Can address each foes elemental weakness.
Cons: Heavily dependent on mana (regeneration)
Alchemist
The Alchemist focuses on the brewing and use of potions. Weak in early game, strong in later game, since the quality and duration of potions increase gradually.
Pros: Can address each foes elemental weakness and can counter their elemental attacks as well as enhance bonuses when enchanting items.
Cons: Dependent on brewing ingredients