Bugged achievement since Singularity's release & how to get it now

There's this achievement that is bugged and only completable by 2 things: Pinhead, and Krasue with the new purple addon "Lorenza's remains" as it applies hindered when a surv with leeched II. I just got it today, while doing adept I put this addon on, and I got 1/3 stacks after finding out it was bugged and you needed pinhead for it (I don't have him). So in case other achievement hunters also missing this achievement, GET IT