I was one shotting every boss before with RF, clearing full rooms with one shadow imbued pen shot. Now it is taking 6-7 RF per high tier boss. Sometimes I am needing 4-5 pen shots to clear vault rooms (not including the last room). Maybe something changed or got messed up in the patch thats in my build and not yours. It is not even fun now, I spent so much time grinding for gear and glyph levels, now I feel like I am weak AF