There are 4 classes in EO.
Vampire:Vampires, the most anticipated part of EO's new Edge of Night expansion, are arriving on June 30th.
The Vampire class in EO is a great combination of strong melee combat and magical support. It has potential for both PvP and team playing.
Warrior: Warriors are the easiest and therefore strongest class, they are limited by their SP - (stamina points), which is their physical power gauge that controls their ability to jump, use Flying Chop or Chain Chop (and God forbid one runs out of SP during an intense battle)
Mage:Mages are blessed with the superior skill of Thunder (which is an EXTREMELY popular PKing skill that Mage Eudemons can learn as well), however, this skill is extremely MP-(Mana Points) draining and cannot be used all the time.
Paladin:In a time before Paladins existed, a group of desenting mages gathered to discover a method of gaining the strength of warriors. They concluded by giving up their souls in an exchange, they could not only gain the power of physical attack, but also cast spells.