Magician

Description
Magicians use tons of magic. Unlike the other physical classes, mages prefer to use magic instead to attack and defend themselves. However, although they are physically weak, magicians are one of the most supportive, popular, and highly recommended classes to take in MapleStory. Magicians also have the best power to range ratio, which makes them cheaper because they don't have to buy potions often. They are highly respected and valuable for party quests, boss fights, hunting, etc. Magicians have extremely powerful mobbing skills as well as useful support skills. At Fourth Job magicians have the ability to blast the map with their elemental skills.

Becoming a Magician
Requirement: Level 8, with 20 INT However in GMS you do not need Int. all you need is level 8 now. When you talk to Grendel, you will be able to reset your stats. (Beginners automatically have 4 int and 4 luck).

Go to the Magic Library which is located at the highest point of Ellinia, where you'll meet up with Grendel the Really Old. Talk to him and he'll advance you as a Magician if you have the required stat, which is 20 Intelligence.

Job Tree
Level 10-30: Magician

Level 30-70: Wizard (Ice/Lightning); (Fire/Poison) / Cleric

Level 70-120: Mage (Ice/Lightning); (Fire/Poison) / Priest

Level 120+: Arch Mage (Ice/Lightning); (Fire/Poison) / Bishop

Cleric
Clerics are magicians who use healing, buffing and holy magic to help their teamates and destroy their enemies as well. They have an incredible skill known as Heal, which heals all 6 party members and even attacks undead monsters. When maxed, they heal up to 300%. Due to this skill alone, Clerics have absolutely no need for HP pots. They also have MP Eater, which, at a certain success rate, allows them to drain some of the monster's MP to fuel their own. With this and Heal, Clerics only need a few MP pots to sustain them. Easily, this makes them the richest class in the game. However, holding on to your hotkey for Heal when training on undead or healing your party members can easily bore the hell out of you. Clerics require lots of patience to get to the 3rd Job.