The immune to equalize sucks, this was never a "fun" dungeon fighting a monster that is immune to nearly everything and pumped so full of life. The monster barely resembles the one you as a player would actually get to use.
So What team did you end up beating him with? I used a three str The Judgement, a Team speed/str Goldfield, And an Incognito with 2 str/1 speed Took a boring 30 minutes or so. No items used.
Was very disappointed that Incognitos transference skill did not work as advertised and remove the life regen. It says remove and good buff, not remove any except life regen.