make sure when you make the dmg formula that it includes defence. such as "a.mat - (b.mdf * 0.5)" where before it deals dmg it take into account for def.
I've done it before but when the character reach a certain level low level enemies always give 0 dmg to my party.
try turning down the defense they will get along the way, say if at endgame they would have 200 try seeing if 150 would work.
I know this is a year late but what I do in my projects is scale the damage based on def instead of just subtracting.here's the formula for my basic attack: (a.atk*(a.atk/(a.atk+b.def)))
