Quote Originally Posted by Slashley View Post
Assuming that the success rate of debuffs is 30% and you're running triple debuffs (Sniper Shot, Ambush, Amaterasu) you're likely to get... about 1 (def) debuff up? Let's have a quick look, 34% of the time you'll land none, and... 9+6... 15% of the time you'll land both? So 51% of the time you'll land one, I guess? Somebody could do the proper maths on that one.
I have a debuff calculator that does this, but yes, this won't be a typical encounter. I'll probably run Joan and Gaia and not bother with debuffs.