FF6 Curse of the Gods - full game hack project

I totally changed the original settings of elements in the game:

Fire -> Fire;
Ice -> Melee;
Lightn. -> Ranged
Poison -> Earth (now the damage of poison status is earth)
Wind -> Wind
Pearl -> Curse (any source that involves the curse)
Earth -> Magic (non-elemental spells, like Flare will have a neutral element)
Water -> Water

And the other elements? They will be a combination of the 4 elements left unchanged... the logic is the same used in Grandia.
In the case you don't know Grandia, here's the scheme:

Fire + Wind -> Lightning (storms aren't counted as lightning)
Fire + Earth -> Explosion (lava, bursts, meteors)
Wind + Water -> Blizzard (ice, storms)
Earth + Water -> Forest (actual poison spells nature, only the status is linked to earth, or it would become annoying to handle...)

That's why i need to change the priority of elemental damage modifiers, besides Holy damage will be forced to have a weird type or being no elemental, unless i manage to assign a greater priority to "no change" for elemental damage...
If that will happen, then Holy will have all the 4 primary elements: it will double its damage quite easily, and it will be very hard to block.
Why all four elements?
Because this guy combines them to create the holy sword Kita Kita!