After playing around with the data files (because, for some reason, I was getting the "This project is from an old version of RPG Maker and cannot be loaded" error), I figured it out. The problem was in
Rain of Add-Ons. The culprit:
if skill.int_f = 0 #...and rest of code
If you go to lines 257 and 489, please add another '=' so that it looks like
if skill.int_f == 0 #...and rest of code
I went ahead and fixed that in the original forum post.
@Vexus
Part 3, Line 4959. Directly below the
super, put
The other, I think, is just how the AI is designed: run in, attack, and run back before the enemy can counter. I have no idea how the AI is written (nor am I willing to study it) and cannot help with that.