Scholar (Final Fantasy III)

The Scholar is a job class in Final Fantasy III, both the NES original, and the Nintendo DS remake. It is gained from the Fire Crystal. Using their analytical prowess, scholars are able to ascertain an enemy's HP and my existing weakness. They also use the mystic power of ancient tomes to damage enemies. Their extensive knowledge allows them to double the effects of items they use.

NES version
Scan checks the enemy's weaknesses, while Peep checks their HP. Due to the fact that White Mages are able to cast Libra, the Peep ability is most often left alone.
 * Special Ability - Peep and Scan

DS version

 * Special Ability - Study, White and Black Magic Levels 1-3 and items used by the scholar have their potency doubled

Study not only reveals an enemy's HP and weaknesses, but it also removes any beneficial status effects on them too, similar to the effect of the Black Magic Erase. All items used by the scholar have doubled potency (ie: Instead of healing for 500 HP, a Hi-Potion used by a Scholar heals for 1000; also applies for offensive items like Antarctic Wind. Only works in battle).

Trivia

 * The Scholar makes a small cameo in Dissidia Final Fantasy as a tutor from the in-game manuals.