Having the option to use Vigor in some spells

I'm having a thought about maybe having 2-3 different damage formulae, then be able to independently pick what stat to use as attacking stat and defending stat in each... so you could hypothetically make an attack that uses formula 1 with vigor hitting magic defense... then another attack that's also formula 1 that instead uses magic vs stamina... the coding wouldn't be hard to branch... just wondering if it would be worth writing a couple extra formulae to use with it... then making sure all abilities are either edited, or default to something consistent.