So, before things get too crazy, I've got some information on what's going on with theIron Maiden passive and want to make sure you all know what's up before relying too heavily on this skill.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.We do plan on hotfixing this passive in the very near future to lower amounts. However, as with most hotfixes of this nature, the tooltip will be incorrect even after the hotfix is live.
현재 고단으로 갈 수록 가시 대미지가 엄청 증가하는 부분에 대해 핫픽스/패치는 확정이니, 너무 가시에 투자하지 말라는군요 ㅎㅎ
출처 북미포럼 블루 포스트: http://us.battle.net/d3/en/forum/topic/12428153164?page=3#53