When you're lv 30 :D
No, it is not really possible to do so.
You don't need it but if you want more skills or to spend your points you would normall advance. It is also the easiest quest to advance
that light bulb does not matter if you ignore the quests and just go to the advancer in the town of the job you want you can advance
Wait until you're level 30 and talk to Dances with Balrogs.
You cannot do that unless you are a dual blade. If you are, you can ontain a skill book called phantom blow and you can use it to get the phantom blow skill
i've never tried it so i don't know if you can.
At level 120.
No.
The mechanic has not yet been released
On MapleGlobal, it came out on the 12th of November
Night Walker
Chief Bandit followed by Shadower.