There were two offense skills that I could use in addition to my first job skill, Magical Ball. Magical Ball was not much in terms of offense skills. This was the weakest mage attack skill, and since I only kept it at level 1 just to unlock the skill, it was even more miserable. The Healer's second job offense skills were called Prayer and Spiritual Meteor. The skills were as impressive as their names.
In this kind of situation where I had an NPC to protect, it was first and foremost important to pay attention to the skill description.