Pros

Can use element primarily based attacks early (2nd job advancement).
In contrast to Assassins, Hunters and Crossbowmen, Magicians can still use their ranged attack even when enemies are close.
Extremely high Mana Point (frequently just typed as MP) level and regeneration.
Later on with mastered MP eater, they need very few MP potions
Area Of Effect abilities
Cleric, one of the second job advancement, will be the least costly.

Cons

Very low health and can die easily against most monsters with out magic guard.
Utilizes a lot of pots especially MP Pots.
Magician armors within the starting give very low defense.
Slow to level from 1 to 8 (this only applies to VMS).
Higher MP consumption for 4th job AOE skills (mainly the ones that target the entire screen).

Requirements
Have not chosen any other job.
Minimum level 8.
All Ability Points not placed into INT can be utilized for STR to make coaching a lot easier. Whenever you attain level eight, speak to Grendel The Really Old to become a magician. He will fix your stats whenever you make the advancement, setting the right INT for the level maplestory aran mount.