There are many MMOs on the market with new ones arriving every year. Some MMOs have more classes, while others tend to consolidate. But, which class archetypes can't be left out of any MMO? Please try to be more specific than Warrior, Rogue, Mage, Cleric. For example, is a Holy Warrior (Paladin,Templar) archetype mandatory these days? Do all mages need to cast Fire spells in your opinion? Should there always be a pet class? I'm just trying to get some insight on player expectations. What should be available and what do you want to play?