The source is from here.

Mages are a very common class in MapleStory. Some players kept wondering the pros and cons of Mages. Here is a wonderfull guide for you, just go through and have fun!

Pros:

1. After 2nd job they can teleport, and absorb their enemies MP.

2. Can essentially use their MP bar as their HP once they max out Magic Guard, meaning they can take a lot more punishment.

3. They have bucketloads of MP.

4. They have ridiculously fast MP recovery rates, meaning you spend a lot less on MP potions than other classes.

5. Magic Claw can attack through walls.

6. Can attack at range OR up close.

7. They are by far the most powerful class during the 1st job advancement. You will level very fast after level 15(You can also buy cheap MapleStory power leveling to do this^^).

8. Very stable damage using Magic Claw.

Cons:

1. Mage gear tends to be expensive since so many people play mages.

2. Some people don't like mages as they have a bit of a reputation as "ksers", so be prepared for some people to be rude to you.

3. Tend to get weaker after the 2nd job advancement compare to the other classes

4. Cannot jump and then attack while in the air.

5. Have the lowest HP out of all the classes.

6. Taking damage from your MP bar (once you have Magic Guard) is expensive(Buy cheap MapleStory gold). MP potions essentially cost twice as much as HP potions.