Magus (Final Fantasy III)

The Magus (魔人 Majin lit. Magus), also known as the Warlock, is a Job class in Final Fantasy III. It is gained from the Earth Crystal. Magi can cast all Black Magic spells. They also possess higher MP for high-level Black Magic. In all respects, the Magus Job is basically a powered up version of the Black Mage Job.

NES version
The Warlock can cast every Black Magic in the game, making them very useful.
 * Special Ability - Black Magic Levels 1 - 8

DS version

 * Special Ability - Black Magic Levels 1 - 8