It's why I'm so adamant for Faith and Brave, I like the concept of Temper, in that it grants a type of trait under spell format.

The idea of augmenting yourself via the means of spells to me is a really good idea, so while they're not the best at the jobs, they can augment themselves to be much better, but Temper isn't enough. More unique spells are needed.

Things like:

Magic Attack Bonus, Accuracy, Fencer, Conserve MP, Subtle Blow etc....