Hello Jon the Fox,
I was not aware that Luck affected status effects until this post.
From my observations, when you have b.addState(x) in the damage formula, the State seems to ignore Luck.
b.addState(4); a.atk * 4 - b.def * 2When I tried using the Effects, Type box with Add State, Poison 100%, none of the effects would land on a target that had 999 Luck. I proceeded to raise the Add State, Poison 1000% (did not seem to let me set it above that.) The target had a fair amount of resists.
I also attempted to have multiple lines that had Add State, Poison 1000%, but that did not increase the likelihood of the effect. In this case, the Poison would be removed at the end of the turn to ensure that I was re-landing it.