Yea Feion, give it a shot. Have someone master the calculator class, then make them a wizard with math skill, put them on auto-battle, and watch him kill every enemy unit on his first turn with a single calculated holy spell, which happens instantly, and with no mp cost....

oh, and don't forget to actually teach him holy as a priest first, and teach him any other spells you'd like to see him cast. But as a user of math skill, you will need raise, maybe raise 2, and holy. frog, petrify and undead are nice too. as a wizard, you could also use cure very effectively.