Though I'd share some ideas for spell effects.
+++If target has Death protection, ignore (factor 1/16) flag and use spell power value for normal damage calculation.+++
I was thinking about applying this to W Wind so that if a target was protected against Death, instead of reducing it's HP by 15/16,
it would use spell power of 15 to do damage like a normal spell.
Monster A is not protected from Death, has 5000 HP, is left with 312 HP after 15/16 reduction.
Monster B is protected, get 1618~ DMG.
+++Randomly scale damage+++
This one would modify damage like Comet\Meteor did in FFV.
Also in my other thread I posted about making spells check targets for 'Harder to run', and miss if found. I was thinking of applying to Demi\Quartr and the like, so they'd be effective on targets protected from Death, but not tougher monsters or bosses.
If you feel like adding your own ideas to this thread, go ahead, I'd like to see them.