Op this dungeon is not impossible. Did cof magg lastnight right after the patch testing out a variety of strategies ie kiting, suicide, and single target focus with the later being what worked. Just got to prioritize the first wave, the moke dude first, then from there killing the mob with the least HP. Then prioritizing the flame wall guys with each spawn. Group comp was warrior, guuardian x2, thief and ranger. Sure it took some time to figure out what worked but that’s what dungeons in this game are meant to be like. They are considered sort of like endgame content, and the gear being purely aesthetic, if one just wants exotic gear but does not necessarily look as eye pleasing then just craft them, or farm karma.