hmm... well you should have one main, but don't stick to it. Your main couldn't do what other characters do. you would need a wizard for farming, priests for collecting poison bottles, GS for fun, professor for summoning mvp or plain pvping(professors are strong), paladins if you don't want to die, sinx for killing somebody, champs for mvping, soul linker for buffs, creators for fcp, ninja to piss off some sinx, sniper for WoE and traps, WS is also great for pvping, taekwon if you want something different, and LKs for all around. (did I list all the jobs, I think I missed one or two)