So...I managed to get pretty far solo/duo and skip most of the group/dungeon stuff. I need to do Gatekeeper and I understand I need a purge. Sadly, shotgun and elie are seriously the last thing I've put points in. The guides I have been reading are more confusing. A few of them say that even if I manage to equip a purge passive and defeat gatekeeper with my other-than-shotgun/elie builds, I still will be at a loss without Cleanup in nightmare dungeons. Is this true? Currently I use Hammer/Fist DPS and am happy with it. Please advise what I need to get thru gatekeeper using my AP efficiently and I will bake cookies. Pink cookies with ponies on top if necessary.