Dawn of Souls Thread

Ok, if I continue to use magic for the Black and White Mage does it upgrade? .e. Fire 1 to Fire 2 or do I have to buy it?

FF1 needs you to buy new spells in order to upgrade, but in FF2 you'll need to first buy the scroll (ex: say Fire) then constantly use it, in order to make it stronger (ex: after 6-7 uses Fire becomes Fire II.)