I am thinking of adding a new modding tool to the script.
The idea is simple: slow change of one chosen variable for balancing purpose.
Here is an example:
You define an enemy with constant stats then a weapon with variable damage [or in reverse].
You define it's damage as 15+20 ! 10 which means it will add in increments of 20 ten times -> 15, 35, 55, 75, 95, 105... 215.
Each of that damage value will be tested.
I think that should help a great deal.