I thought I'd put out this quick post on the class system for people who are just entering beta. Hopefully, this will answer early class mechanics questions.
ArcheAge Class System
The class system in ArcheAge is very diverse. Similar to Rift or Final Fantasy XIV, you select multiple classes that are combined into a single profession. There are 10 base classes to choose from yielding a total of 120 different play styles / professions. Each of the 120 options has a unique class name. However, the skills selected from that trio will differ among players. Of course, there will be cookie cutter builds because we as gamers, sometimes lack originality and go for min/max specs.
You are required to select a class when you create your character. Don’t fret over it too much as even that selection can be changed. It’s merely the skill set and weapons you’ll be using for the first few levels. At some point before level 7, if I recall correctly, I was asked to choose a second class and it progresses from there.
If you have a favorite class or play style from another game, there’s a good chance you can recreate it in some fashion in AA. That said, the differences might not be to your liking. My first attempt at a trio was a WOW type Warlock, GW2 Mesmer or leech healer. I tried the combinations people suggested as the base classes but none of them appealed to me. My experiences in GW2 and Tera have slanted me toward more active combat. I’m not happy standing still, locked in place, in order to cast spells. That’s feels too old school now for my tastes. So you have to experiment until you find what floats your boat.