Hehe...it's amazing how crazy these things get when you start picking apart every little thing. :googly:

Anyway, at the root of these I've come up with three things that can represent both simple or complex ideas, and would (should) be enough so simulate any jrpg ever made. These are:
*Buffs (essentially all equipment is like a buff. Easy for things like "all element resist +1" or "any/all stats +- some amounts")
*Modifiers (Limited to a single stat, eg; hp + 10%)
*Factors (not limited to anything, really, but require to be defined by scripts. Things like "enemy_atk_x5, exp x2" or "adds random status effect to attacks".)

At any rate we'll have to finish the battle algorithms and logic before adding anything else.