Dr. Odine
Started as a monster researcher. Discovered Guardian Forces (GF). With the
cooperation of a sorceress, became the first sorceress researcher. Analysed
the sorceress' magic, and created a method enabling a regular human being to
use para-magic. Balamb Garden uses the principle of para-magic, combining it
with GF's power.
Basically, humans can use magic without a GF. The soldiers do it through their swords. I'm happy to say that, this time, they thought about this