Den of Evil took a while, but wasn't too hard. Zombie minions and bosses take a while to kill though. Same with those Brutes... When I went for Cold Plains WP, Quill Rats clans x2 with might and amp dmg almost killed me, so had to save and exist. Ergo the previous game thingy!
Besides heavy melee dmg, it actually works fine. Bishbosh is dead!