Quote (drallcom3 @ Apr 8 2014 05:55pm)
"There is a bug with Iron Maiden where it is currently (erroneously) scaling with monster difficulty, which means at higher difficulties it's reaching some extremely high values. This is not intended, and we have plans to completely redesign this passive in a future patch. We want to give you a heads up so that you don't spend your resources building exclusively around this skill when we're fairly certain it's going to change."
Enjoy it while it lasts.
all good things must come to an end