As I said, it does not apply to me, as I tested with one source of dmg at a time (e.g fairy). Modded dmg will proc randomly. Addresses are unique and depend on the positions of enemy, with fixed offset. That means i don't experience enemy atks my monsters with insane damage, unless i specifically want them to.
I find that almost all value can be modified, but hp and drops. If you try to find the values, you will most likely find the addresses to display the (fake) values, which reads from the real ones. I think these real values are protected under the form of x * display value. x could be a negative value. It could also be dynamically assigned, i've seen this practice on pc games, but I doubt they use it in this game.
Edit: the theory works, found hp address. Don't know the exact formula though.
Edit 2: is there a way to search for arbitrarily small number in game hacker, eg 1*10^(-50)? I think there's a way to hack drops